For starters, I am a WOWer now playing WAR. I like WAR better for the following reasons:

1) YOU get to pick how you want to level. If you like grinding, you can level that way. If you like BGs, you cna level in BGs. If you like quests, you can level that way. Most quests are soloable. Public Quests (PQs) are not. But you don't need to join a group to do them; if you desire, you can simply be in the PQ area. Everyone there contributes to the collective goal and is graded on their individual contribution when it's time to divvy up the loot. No matter how you prefer to level or play, WAR gives you an opportunity to pursue that style of play. FAR superior to WOW's mandatory quest/grind system of levelling!

2) In terms of RvR (PvP), WoW is no match for WAR. For unknown reasons, the best gear in WoW is only available in Arena play. Ludicrous since Arena play occurs in closed containers and doesn't let you use all your toys and abilities. WoWs attitude towards PvP is cavalier, at best; it seems PvP is a necessary evil to them, included in lightwieght form only because players want it, not because they think it has value.

On the other hand, WAR give RvR/PvP the full hands on treatment. If you like WoW style BGs, WAR lets you LEVEL by playing similar type instances. And you get loot while doing it!

If you play on an Open RvR server (the only way to play if you ask me), you can fight the enemy everywhere except a few safe zones. Even on non-open RvR servers, every zone has areas where RvR is available - and who controls those areas affects your game. Tower to capture, castles to seige, huge battles over strategic passes or 1 on 1 encounters, WAR offers it all!

3) As mentioned above, I don't need to pocket my best toys to qualify for the best gear. I can USE my heal pots, my Netherwing pet dragon I worked so hard to get but can't use in Arenas, my energy boosts - they ALL work in this PvP play. WoWs arenas are a joke for that very reason: they limit your use of items you earned in non-arena play. I will never understand why WoW thinks this is desireable - or sane.

Does WAR have faults? Sure. Every game does. For starters, Mythic has never been known for being computer-resource friendly. A low end system won't run it. A middle of the road system may bog down in large encounters. Such is life in a land of 100+ vs 100+ man fights over Keeps. The polish is not there yet. This is expected in a game which was just released. I currently have a pair of armguards whose icon looks like boots and even displays as boots when I put them on - even though the game treats them as though they are in my arm slot. Monsters sometimes lag when you atack them at distance, then jump forward to appear next to you. Disturbing, but playable. The mail system doesn't offer a "you got mail" flag in the UI. Completely baffling as you frequently miss any chat box mail notice if you are in battle. The mail system also only lets you mail 1 item at a time, another strange limit which most assuredly will be improved in a future update.

So, to those who say WoWers won't switch to play WAR. YES WE WILL. I already did. I predict many more will follow.