The fighter has always been obsolete. The fighter class is exactly two levels long.
True, Count. I was brainfarting.
but if they were truly "any feat you qualify for", effectively replacing the fighter... that MIGHT be worth sticking around longer than just 2 levels.. could pick up full legacy weapon advancement at no effort, grab some binding, incarnum, racial feats, plus 3rd party material I've bought could abuse the hells out of this idea.
May be worth staying for a bit longer... odd levels are still dead, though.. you'd need to pick up something every even level like legacy stuff to make it fun to play a bit longer till the next feat.
Warforged VoP with item familiar legacy Battlefist, incarnum, and binder?
might work. I'll throw one in my game to see... won't be for a few months or so, though.