Well, the question is rather complicated for me. Being culturally an Eastern Slav I gravitate to Russian culture (but hate Russia's modern political system and ideology) but I would like to live in a quiet small Slavic country with developed infrastructure which does not experience too pressing difficulties in the wake of the world economic crisis and where good beer is brewed. So, two last reasons possibly exclude Slovenia (that was a good option all the same) and point directly to… yup, Czech Republic. Prague is my choice although I love Kiev (Kyiv) dearly and am a patriot of my home city.
And  yes, the Czechish beer is the best in Europe! ;D And my wife is half Czech and even graduated from the high school in Prague and has relatives there.
Svätoslava, with my Ukrainian and Russian I better understans Slovak. In those videos you placed in your posts I understood only separate words in Czech and on the contrary – almost all said in Slovak by those blondies. :) I should add to this that I never learned either of the languages though.