I'll be the odd man out, and say it:
GURPS is a better game than D&D 3e. IMNSHO.
When I GM, I use GURPS exclusively. I do not like, as a GM, the silliness of the D&D class/level/HP/alignment system, and prefer grittier games. GURPS does that well, and with a graceful core mechanic to boot. I'm...