As long as the character has a decent concept, and role-playability, I can usually get behind it regardless of the class.
My "perfect" character is a Paladin, though. It was my second class, ever, and the one that stuck around the longest.
Although many people feel Paladins to be wimps, I ALWAYS runb them as the 1ed Paladins with the code of honor, and the various things that make them difficult for most people to run properly or well.
I usually create Paladins that Always charge to the front to defeat the evil in the world, yet is willing to NOT charge if the case calls for it (a neutral encounter). My Paladins will always keep their word, and will ALWAYS be the last one off the field of battle. If a character goes down, then Pally will stand over the top of him/her and fight off any non-party that threatens to come near... plus, I occasionally make them slightly arrogant, just to really piss people off.
Basically, Chuck Norris, mixed with John Wayne, mixed with Pope John Paul II.
Of course, that was all good until I had a DM force me to work with a few devils to stave off a demon attack. I was pissed off, yet it was so artfully done, and logical that playing it out was definitely worth the atonement punishment.