If I make an attempt to make some generalization on
Russians' attitude to the other countries, it will be like that:
(please, remember, it's not my own opinion, it's (a little bit subjective) nation-wide generalization which is not meant to be absolutely accurate. I agree on some points here and I really disagree on the others. Read at your own risk. 
)Love:
If there's any country on Earth which is almost universally loved in Russia, then it's
Serbia. Serbians are considered "our Slavic brothers", many remember that Serbia suffered from NATO (and NATO is not very much loved here obvsly), maybe, some draw parallels like "Serbia in Yugoslavia = Russia in the Soviet Union" (though Russian role in the Soviet Union was really complicated and much more dramatic than sometimes generalised "Russia conquered 15 states, made them accept Communism and benefitted a lot from that")
Also many here do love
Belarus, especially those nostalgic of flagussr Soviet Union, as Belarus is sometimes seen as the stronghold of Soviet traditions in the modern world with nearly European order and organisation.
For some weird reason a lot of people love
Finland. I don't know why to be honest
maybe, these are just my acquaintancies.
Dislike:
The former Soviet -stans (like
with the possible exception of
Kazakhstan) and some Caucasus nations (from my observations -
Azerbaijan - to the greater extent,
Armenia and
Georgia - to the lesser extent, also some Russian Caucasus regions receive a bit of this pie of hatred) - a lot of migrants with well-developped diasporas, who refuse to study Russian language (at least properly) and often resort to their mother tongues and are not really good at abiding law; they're also thought to lack the sense of order completely. The fact that they occupy a lot of jobs doesn't contribute to warm feelings towards them as well.
Mixed attitude:
Europe and
USA. The Russians' attitude to the West is quite schizophrenic, in my opinion. On the one hand, there's still heritage of flagussr the Soviet Union when Europe and USA were seen as rivals and many people still believe that this race is still going on. This is doubled by all the recent sanctions exchange and MASSIVE propaganda on the state television. On the other hand... most people here understand that Europeans live ways better than we do, so the things like "european quality", "european-like order" and "european standards" are still highly evaluated by many.
The funniest thing is when there´s a news block on TV, and first we are told about how Europe is wrong about all these sanctions and how their economy is going to suffer, and just next there may be a report on some unpopular law or government decision which is justified as "already working in Europe and making a lot of benefit" - like wtf guys, you were just hating on Europe like madmen?
If we take individual countries, I'd say
Estonia and
Latvia are mostly disliked (due to the reports on violations of Russian-speaking minorities; I don't know whether they are true or not, I'm just giving the facts), Nordic countries are beloved as Russians believe that Nordic people are perfect at organizing life (almost the same goes about
Germany) and
France,
Italy,
Spain and
Portugal are adored for their culture. So if we don't speak about politics, I'd rather even say that we think of Europe much better, than Europe thinks of us
China also receives somehow mixed attitude here... on the one hand, many people see them as a possible ally against the Western influence (
), on the other hand - others are afraid that they're going to conquer scarcely populated Siberia... so, strange political stereotypes are in full swing here.
Lithuanian most hated country is 
Poland (you have to live here to know why) 
;D
?
Azerbaijan, but I love the country itself.
Germany likes: (Not my personal opinion, I try to illustrate what the general opinion in Germany is)
Sweden: We love Sweden. Everything is better in Sweden. I don't think there's a single person in Germany that dislikes Sweden.
Finland: Because of their education system. We try to copy it.
Austria: Brothers. Same language, similar culture. (but that's also a reason why many people hate them)
Netherlands: Brothers. Similar language, similar culture. We love to spend our holidays there. (gigantic rivalry when it comes to football tho)
France: Franco-German friendship since the Élysée Treaty in 1963.
Israel: Yes, this might seem surprising. We're very much in favour of protecting Israel. (There is criticism against Netanjahu tho)
Australia, 
Canada, 
Belgium, 
Norway, 
Denmark, 
UK, 
Japan.
Russia: Because of Putin. Krim. Anti-gay. Etc. (There are tons of Russia-supporters tho)
Afghanistan, 
Iran and other conservative muslim countries: Because of lack of human rights (mainly women's and lgbt rights) etc.
Greece: Not because they are in a financial crisis. But because of how they treat us in this crisis. Some Greeks hate us, think we are the reason for the crisis and even call us Nazis, although we are the country that gave them by far the most money 
There is very big sympathy for the Greeks, but we're mad when we always get the blame for everything.
New Zealand like:
They're just really nice and respectful people who are really interesting (despite their German humour 
Spain and 
e 
Every Eastern and South-Eastern Asian country: There's a huge outrage over the so-called 'Asian Invasion' that's occurring in New Zealand - they supposedly come here, take our jobs or are foreign buyers (and purchase a shitload of houses which are only bought to sell 5 years down the track for a profit) which only makes things more expensive for everyone else. Plus there is a growing Chinese influence over here in terms of the economy and people don't really like that. Personally I don't mind these countries (most of my friends are Asian anyway so 
India: Indians are disliked here simply because most of them migrate here only to open dairies (a stereotype) 
Samoa and Tonga: Regarded as fat, uneducated and loud people.
South Africa: I don't really know why but nobody likes South Africans here 
New Zealand like:
Australia: We have a big brother/little brother love-hate relationship, but at the end of the day, nobody has Australia's back more than we do.
United Kingdom: For obvious reasons we have a lot of cultural ties with them. British people are usually highly thought of.
Canada: New Zealanders love Canada because we believe they suffer from the same problem of being overshadowed 
e 
Every Eastern and South-Eastern Asian country: There's a huge outrage over the so-called 'Asian Invasion' that's occurring in New Zealand - they supposedly come here, take our jobs or are foreign buyers (and purchase a shitload of houses which are only bought to sell 5 years down the track for a profit) which only makes things more expensive for everyone else. Plus there is a growing Chinese influence over here in terms of the economy and people don't really like that. Personally I don't mind these countries (most of my friends are Asian anyway so 
Japan is probably the only exception.
India: Indians are disliked here simply because most of them migrate here only to open dairies (a stereotype) 
Samoa and Tonga: Regarded as fat, uneducated and loud people.
South Africa: I don't really know why but nobody likes South Africans here 
America has quite a mixed reaction - they're either regarded as modern day saviours or manipulative, greedy and selfish people who are trying to 'Americanise' our country with its culture. Right now it's the latter due to the TPPA agreement.