First off, your character doesn't seem to be bould as a "hardhitter" (power attack, cleave, greatsword, weapon focus, etc) so i wouldn't go down that road with things like cleave.
All those 'utility' feats (track, run, etc) are nice, but not great.
Quick draw is nice, to switch between polearm and nearby weapon. But then you could also take EWP spiked chain and spare yourself a weapon to carry. You still can improve later with combat reflexes, weapon focus, etc. But i'd still take combat reflexes first.
Weapon focus, specialisation is always a feat well spent. But you'll need another 3 levels fighter for specialisation. Also, wf with a reach weapon is tricky, since you don't use it against nearby opponents.
You already took improved trip, so it would be a waste of a feat to not build any further on that.
Combat reflexes is a great way to expand battlefield control (pick up AoO's and trip the lot. As they stand up.. another AoO and back down they go). I'd go with this one (but then, talbin already did
).
-edit:
the dodge, mobility, spring attack combo is very nice, but i'd say you would already had to go down that path by now... The first two feats are quite limited and it'll take quite some time before you get that third feat..