I prefer being DM.
I have realized that I only like being a player if the DM is really good at running a game that fits my style. I prefer the PC to be more personal to me, if he's not, I don't get into playing him much. If I don't care about my PC much, the game is more like a board game that is fun every once in awhile but not on a regular basis. It's hard finding new DMs that fit my style as a player because they are either too rules lawyery, too powergamish (even if it's in my favor), too silly, or they just run a dull game. Some DM's are fun to play with, just not on a regular basis.