I cared about this a few months ago. Then I got into the War beta and haven't thought much about WoW since (other then in the context of "man the PvP and questing system is so much better in this game then it was in WoW, not having to grind faction/everything else is such a relief).
You can level from PVP, there are over 20 battlegrounds (instead of 4 after 4 years), there are both open PVP areas that have meaning for the makeup of the world and PVE areas where you only have to PVP if you flag PVP. There are public quests where the first part is relatively easy (read you can solo kill the enemies), the middle parts are mid range difficult (a group of 2-3 can do it easy, can even solo it if over the lv of the PQ) but then there are epic finalies against things like dragons and hero bosses with a posse of bad ass friends designed for a group or even more.
It's great since you start out alone and kind of build towards a final fight with the group thats coalesced around the area by the time you get to the end.
I played WoW from release, did almost everything (raiding, doing arena and getting a top .5% gladiator 5v5, maxing rep with all the battlegrounds ect) and can say from experience with both that Warhammer Online is superior in every way. If you liked aspects of WoW you owe it to yourself to give warhammer a try, its everything thats good about WoW and so much more. Warcraft is simply a rip off of the Warhammer Universe (they tried to licence Warcraft with Games Workshop originally, and only changed a handful of things once they were turned down), and the epic feel of constant war is captured much much better in Warhammer then Warcraft has managed thus far.
As a final thing, the end game raid for Warhammer? Epic city seiges and combat with the enemy king to take control of the opposing factions town! Yes, city seiges include seige weapons, huge PVP battles to unlock parts of the town and then epic PVE confrontations with the cities final guardians including the king and his retinue. I know I for one wished that WoW had actually integrated a meaningful city attack framework, so the idea of being able to raid cities and have it matter is incredibly appealing.
I own no stock in Mythic and have no real reason to say any of the above other then my play experiences in beta and the head start I'm in right now with the release version of the game. You have 2 months to try it before being confronted with the WOTLK/Warhammer choice, might as well :D I guarantee you won't regret it.
PSN ID: ChosenOne feel free to add me
