Traveled a bit off topic now, have we. Still, humans as the boring choice is a conversation I find interesting, because I think humans get a bad rap for some reason. Race is just one aspect of your character, and depending on the system and the setting it could be a very minor aspect or a much larger one. Humans serve as the baseline, a good center that lets your character be grounded in a more realistic place before branching off into whatever fantasy constructs you have. Playing a character with a completely alien culture and heritage can be a lot of fun, but so can playing an average character reacting to the strange and alien.
To put it another way, you can make an interesting human paladin, but changing the race to elf doesn't instantly make the character twice as interesting. It makes a different character who could be more interesting, but also could be more boring. It depends on the setting, how good the player is at writing the backstory to mesh with what already exists and use the hooks their race of choice gives them. And while the stranger races can have the appeal of oddities and expanding your horizons, humans have the appeal of being something we all know quite well and know the nuances of.
Basically what I'm saying is, you can make an interesting and fun character using almost anything. And looking down on people because they choose to only play a race or never play a race makes you kind of an unpleasant person.
Edit: Just a note: I'm not pointing anyone out specifically for doing that, I'm just making a general statement. Food for thought, you know. It's what we humans do.
Except Penchant. I think he's a dorf in disguise. O_o