Perhaps you should be more specific. First, there is political liberal and idealological liberal (see
www.politicalcompass.org) and then there is the matter of what certain countries are liberal about (i.e. can you smoke weed freely but be incarcerated for adultery). It's hard to think of what the most liberal country overall is I'll wait for some of the responses. I'm also interested to see if non-US people see the same countries as liberal as the US TFPers do.