Please, tell me what I'm missing.

I posted about this on Google+ yesterday, but my blog reaches a slightly different audience, and this is something I really do want engagement on.

The long and short of it is, I don't understand why Bioware is held in such high esteem. I'd like people to tell me about Bioware games; tell me what's good about them, what was not so good about them, and why I may or may not be missing out. I have played some Bioware games (and I'll discuss that in more detail once comments start coming in; I don't want to be swamped by arguments of "you're wrong about this", when what I asked for is "this is why it's good") and I'm willing to listen to reason.

I have been impressed, largely, with the technical aspects. Bioware has been good at squishing bugs; better than the average by a long way. But debugging doesn't make a game great; some of the best games I've played have been excellent despite bugs aplenty.