Well, in looking at the books I use as a GM, I tend to use almost all three a bit but so far, due to the background I've been working on with the Illumians, Races of Destiny, is probably getting the most use from me in terms of campaign preperation. The Initiate Feats for the various Greyhawk deities in Races of Destiny, as well as the city information in the back of the book, have seen some repeated use.
Now me as a player, I can happily do without gnomes, half-orcs, half-elves, and halflings in the core rules. Sorry, they just don't do much for me. Elves and dwarves on the other hand, have already had some great books out so while WoTC was fortunate enough that they can come in after all is said and done, presenting full color hardbacks at good prices, there really wasn't that much I truly needed done for these races.
Goliaths have seen some use in my campaign. If Half-Giants, from the Expanded Psionics handbook, were used more often, I think their might be some type of problem but as they're rarely used, Goliaths seem to be the new "big strong guy" replacing the half-orc, and doing so for the better.
Raptorans... well, there is nothing this race does that another winged race doesn't do, and due to my own history in the game, (been playing since 1st Edition), due better and with more interesting aspects.
The minor races varied for me. The Miniature's Handbook saw some mining in the form of Catfolk and that dreaded Stonechild.
In terms of level progression, I hate monster levels. I think that Arcana Evolved's way of handling things, just as another class level, where you gain hit dice and other level dependent variants, is the way to go. Monsters should be built the same way as characters.