DND stole the levelup system from DM!
The point is not who is stealing from whom, but what they advertise for.
If Blizzard would have been bragging about "a revolutionary leveling system" or "breaking PvP in a new dimension" then it's a point to brag about "yo see that, it's nothing new it's already at XY since the dawn of time".
If I'd manufacture a car and say "it doesn't touch the ground" and you buy it just because of that and when you see it, it's just a common car and you start on me because it does touch the ground and I'd say "Oh no, it doesn't, the car is in the air, just the tires touch the ground." then it's a thing to brag about.
Just like I said earlier, there surely are those hooligan facts in all negative posts about something, just words to make the dull minded masses revolt. The "facts" I took fromt he posts were: PvP is all about Zerging the other sides base, Loot is just as mindless random as everywhere, Equipment is mainly for the looks, WAR is just another "attack of the clones", the beta still got some issues -> final conclusion: As if I didn't have known before, I'll try WAR out for some time (most likely 3 or 4 month after it was released so that at least some bugs are fixed) and see if it sucks less than WoW (remember, we all play the MMO we play because the other ones suck more than the one we play) and then decide which one to drop.
Don't be haters, just show me one single game that was released in the past 5 years that really was changing things and did not steal any elements from other games. Guess what, there are none, sad but true. Everything you will see in the next couple of years (until there will be some real good AI developed) will be clones of something else. Just use 40% of cool looking graphics, 30% of cloned game elements, add 10% of your own idea and mix in 20% lore. Then swallow it down, vomit it and here's the new record breaking MMO. Games will only be as innovative as the marketing let's them shine. I for myself think that there will be quite some time we won't see anything new, just all the same stuff made up with some different accents and shinier graphics.
It's just the same thing that gets me tired when I go watch a movie. There always are the same stereotypes.
Horror: Group of people enters a creepy place, half the film just teases you, at about 40 minutes the slaughtering slowly begins, at about 60 minutes there's a small storry breaks, at 70 minutes the remaining heroes join each other to kill the big evil, at 85 minutes all the bad things are slaughtered and you see the credits.
Action: Good vs. Bad, BANG BANG BANG, Bad down and the phat lewt for the good: he get's the girl
And take care not to break a leg or something if you try climbing my walls of text I sometimes drop somewhere in forums