AC is huge, lots of furs. FWA is more "homey" still a big con, but smaller. Since I've only been to FWA though, I'm probably a bit biased, but I'd say it really depends on what you're looking for as far as a con experience. Personally I'm going to FWA it's my main con.
2 YEARS AND NO RL ZANZAN HUGS! THIS IS UNACCEPTABLE.