I didn't vote in the poll because our group has recently become infatuated with modifying the basic rules given in "Buy the Numbers" - a phenominal pdf that can be bought through ENWorld's affiliate RPGShop. [I think I got the attribution right, if not, please forgive me]
The thing that my group loves about this is that it throws the class/level construct out the window and allows players the ability to use the XP to buy precisely what they want. So, if you want a bunch of feats, you can buy them at the expense of not buying those hit die, or two good saves, or spellcasting, or class abilities.
We loved the concept so much that our group has been tweaking the numbers and a few of the mathematical progressions given in the pdf to fit WotC's non-Core material. I doubt we'll ever go back to "normal" D&D. There is no greater flexibility that what our game has now evolved into.
So ... in sum, if a player wanted to spend all their XP on feats and nothing else, a 1st level character could feasibly have no BAB bonus, no spellcasting, no bonuses to saves, a d4 beginning hit die, no skill ranks, no weapon proficiencies, but about 4 or five feats if they so wanted. Not that anyone would do it, but they could!
Or, a player could design a character that never bought a single feat (and never received one for free because without levels that kind of thing doesn't happen). They could instead have better than average casting, or a boatload of skill ranks, or better than average saves, etc.
At my table, it is up to the character that the player wants to design as to how many feats they receive. And that's they way they are really learning to like it!