I've only had one smoked beer in my life. I can't even remember what it was called, but it was rated fairly high on BA/RB as far as smoked beers went. I can honestly say that is the only beer style I've ever encountered that I wouldn't be willing to try again. It became a little more tolerable at the end, but that was only because I was trying my hardest to just drink it and not taste it.I am not a big fan smoked beer. Honestly, I would probably take a BMC over a smoked beer.
Edit: Okay, maybe it's not the only beer I'll avoid. I don't mind a good (real) fruit beer. But the BMC Lime and almost anything (even non-fruit) by Leinenkugel, is pretty vile to me.