So in the homebrew I've been working on, I'm using the following races:
Human
Elf
Dwarf
Lupin (humanoid dog creature)
Diabolus (fiendish creature)
Luminoth (angelic creature)
Kindred (think Disney's Gargoyles)
Giant (from Arcana Unearthed)
Goblin
Warforged
As you can see, I can't really answer the poll, because I'd rather have a mixture of thematically and aesthetically interesting races than gnomes, halflings, half-elves, and half-orcs.
Of course, humans are just degenerate giants created when the Idra (the progenor race of the goblinoids and an offshoot of elves) accidentally set loose a genetically engineered virus that was meant to pacify the giant society that was their main competitor for control of the mainland. Yes, it succeeded in creating neanderthal man, but it also ravaged the Idra, turning them into goblins, hobgoblins, and bugbears. All this because the LeShay (the original elven people) couldn't decide if alchemy or science was the proper course for their kind. The race that became elves picked alchemy (eastern-inspired arcane magic elementalism), fleeing to the island of Avalos, while the idra picked science.
But enough of my thread hijack.