I just recently finished dragon age 2 for ps3 and was happy with the game overall but the end bosses of dragon age 2 were one of the downfalls of the game. Many games do this but few can do it well enough that it is enjoyable and not repetitive. Bosses are usually a climatic way for games to conclude the chapter of the campaign but alot of the time they prove to be annoying and repetitive.  
 
I believe we should get rid of boss battles in video games because they slow down the pace of a game and they ruin te experience that the game spent so long building up through its earlier parts. I would prefer to have a giant firefight where i were to take down a bunch of enemies in  a bunch of different ways then to fight one giant boss repeatedly using a single strategy that exploits the boss.  
 
I only speak about boss battles through my experience, you may have encountered a game where the boss was actually a challenging and enjoyable part of the game and if thats the case, tell me what game it is so i can give it a look and maybe my stance on bosses may change. If you are like me and dislike boss battles, tell me why and what boss battle made you decide that enough was enough.