Yes, warhammer is very fun.

WoW is much more polished, but WoW has had several years to polish itself up. The PVP is very balanced, only a couple classes out of 20 or so that are kind of weak at the moment. It's a very smooth release compared to typical mmo releases. There's no way it could flop now. It's going to be extremely sucessful. Will it kill WoW? Not yet at least, but maybe eventually if WoW doesn't get on it's game. Forums and community in WAR are much different than WoW. WoW is full of crying, while WAR has very little and mostly by people who don't know how to use a PC very well.