All of which only points up that either (1) not even a fighter really has enough feat slots, or (2) the number of feats available makes customizing your character a real "pleasure."
A couple other notes from the player about this particular character that might be relevant. The character's been a single-classed fighter since 1982 and "always will be," so no "funny business with multiclassing" (as interesting as I think the monk levels idea might be). We both totally blanked on the Critical feats from ELH, but they definitely make the cut. I also got read the riot act for forgetting Great Cleave; even though I think it's not really useful against high-CR foes, I'm reminded that this character is also supposed to singlehandedly rout lower-CR minion mobs.
The character needs to eke a couple more points of DEX out of his equipment to power AoOs (good thing he knows a couple epic spellcasters that might agree to help him out on that score), but I think we're on to something that's full of fun-to-play clobber potential with this build. Maybe not the height of min-max but still something that wades into battle in full plate and does a crazy amount of damage with a big honkin' sword.
Thanks again for your comments folks, and keep 'em coming if you think I need to consider something else.

I'll also be back with an archer thread as soon as I finish plumbing my books and deciding what sort of feats Legolas's *instructor* might have had.
1. Power Attack {H}
1. Weapon Focus (greatsword)
1. Combat Reflexes {F}
2. Cleave {F}
3. Iron Will
4. Weapon Spec (greatsword) {F}
6. Improved Toughness [CW]
6. Close Quarters Fighting [CW] {F}
8. Greater Weapon Focus (greatsword) {F}
9. Melee Weapon Mastery (slashing) [PHB2]
10. Improved Critical (greatsword) {F}
12. Great Cleave
12. Greater Weapon Spec (greatsword) {F}
14. Robilar's Gambit {F} [PHB2]
15. Defensive Sweep [PHB2]
16. Replace fighter feat with Overwhelming Attack class feature [PHB2]
18. Martial Study (foehammer) [BO9S]
18. Weapon Supremacy (greatsword) [PHB2] {F}
20. Martial Stance (thicket of blades) [BO9S] {F}
21. Epic Weapon Focus (greatsword) {E} [CW]
22. Epic Weapon Spec (greatsword) {EF} [ELH]
24. Overwhelming Critical {E} [ELH]
24. Devastating Critical {EF} [ELH]