I have noticed in each instance I have done on Rift that there is at least one to two bosses that are exactly like World of Warcraft bosses.
For example.
One boss you need to kite from spores before they explode. Another boss webs you and players have to kill the person webbed then the boss summons adds. A boss in high level instance reminds me of that last boss all the way up on Kara where he summons those demon things that AOE. Well, same concept in this instance only graphics are different.
If you have been playing Rift you would find some of these fights exact copies from WoW but only with different graphics.
The whole point of this topic is to ask why can't MMOs come up with their own ideas for boss fights rather then stealing them from another game? Rift is the only game that I have played that made it obvious they stole things from WoW.