My thoughts:
i've just bought wow a few weeks ago, got a 38 human warlock but decided to start a night elf druid on a server my friends are on, got him to level 21 so far. The fact the night elf can do frontflips and movement of all characters in so smooth and spell casting and melee is smooth WoW wins here hands down. in war your character seems to run sideways with their shoulder down no matter what class you are and it feels and looks horrible.
but im only still playing wow as everyone claims it starts at level 70, but im hoping the pve and w/e this raiding thing is is better than standard pve cos atm im not sure if ill make it to 70 as levelling is so unfathomably boring. there are only 3 types of quest wow has. kill x amount of y. kill y and bring me x of their body parts. find person x and deliver this msg to him. literally every quest is one of these 3 but with different enemy names. making billions isnt obviously enough to pay for creativity. so for questing, war wins hands down, their quest system with how its set out on the side etc is amazing.
tome of knowledge, amazing, wow has nothing, another point to war.
havnt really done much pvp on either wow or war so gonna leave that as no points each.
graphics, dont care if war has some new fancy engine, in my eyes wow looks waaaay better.
so after all that id say theyre about equal and it comes down to personal preference
i myself prefer wow has running around and casting spells on war just feels horrible, whereas frontflipping followed by an insta-cast on my druid feels amazing.
we should add a 3rd in here, guild wars. this beats both games on anything hands down 5000x over. although this is the original guildwars before all the stupid expantions that ruined it. The first 4-5 months after guildwars was released it was the best mmo that will ever happen, the questing was original, the fact it had a storyline that was revealed through major missions was amazing and it meant you couldnt put it down as you wanted to know how it ends, the spellcasting and walking and feel of the game was so much better than eaither wow or war. the pvp guild versus guild battles were the best pvp that will ever happen in an mmo, as it actually required skill! you can only bring 8 skills on your 8 ppl so it required planning and co-ordination through vent, and to be good required good tactics. both wow and war pvp to me seems to be a case of who has better gear and gets lucky with crit strikes.
but like all good things it ended when the company wanted more money, and they ruined their own game with stupid unnecessary extra classes and overloading defense skills so pvp just became a stalemate. and guildwars 2 looks so much like wow its laughable.
so conclusion
wow - boring, but keep playing it now and again to hopefully get 70 and it become fun
war - great ideas implemented terribly, just feels wrong to play.
gw - best game ever when it was first released.
so i wont buy war and will prob only subscribe to wow when im not at uni having fun going out drinking etc so its just something to pass some time with.