My friend is in the WAR closed BETA, and i have had the change to see him play and test it for myself. All i can say it's good, better then AoC is but it's not superb. The only thing i really is against is the UI, before ( i'm talking months ago) they UI looked cool, new and fresh. But now it just looks like everything else, the good part is that you have a very advanced UI customination tool to use.
But i wont be quiting WoW for WAR, but that is just because i can't stand the idea with Tier 1 Zone - Tier 2 Zone etc with no real seamless world.