My favorite classes:
Fighter = It's fun being the tank. When I play, I usually go sword and shield and plate.
Thief = The funnest class, imo. My only beef is that in older editions, their skills are so low they are damn near useless at low levels.
Mage = I prefer to cast buffs, use wizard eye to scout ahead, and summon monsters instead of just casting fireballs. I honestly think mages are much more useful if they focus on non-evocation spells.
Paladin = Holy warriors are just really cool. They have a mystique the other classes lack.
My favorite races:
Human = They're awesome in both BFRPG and S&W.
Elf = I have liked elves ever since I was a kid and read Tolkien.
Tiefling = The idea of part demon characters is just cool.
Shifter = The best idea ever published by WotC. I love having an animalistic race as an option.
Aasimar = I love the idea of a part angel character, as well. Too much time in bible study when I was a kid, I guess.