So I've been planning out my feats and trying to figure out how to build my fighter for next life. I'm currently capped out on my half-elf fighter dil paladin, and I have gear to allow me to build a nice DPS-ish fighter. I'm not bent on getting completionist, I just feel like it's time to advance to this character's second life.

Human Fighter 34 point build.
Feat progression:

H1: Toughness
H1: Two Hand Fighting
F1: Power Attack

F2: Weapon Focus: Slashing

H3: Dragon Mark of Sentinel (swap for Paladin PLF with Fred later)

F4: Stunning Blow / Improved Sunder

H6: Cleave
F6: Weapon Specialization: Slashing

F8: Improved Two Hand Fighting

H9: IC:Slashing

F10: Greater Weapon Focus: Slash

H12: Dragon Mark of Sent / Combat Expertise
F12: Greater Weapon Specialization: Slash

F14: Greater Two Hand Fighting

H15: Dragon Mark of Sentinel (second tier)

F16: Great Cleave

H18: Dragon Mark of Sentinel (third tier)
F18: Superior Weapon Focus: Slash

F20: Shield Mastery / Combat Expertise / Improved Sunder

The plan is to use chimera fang with the first tier of dragon mark of sentinel, then swap it for Paladin PLF when other weapons become a bit more useful than Chimera fang. At cap, I will use a lesser heart of wood and take all three tiers of sentinel dragon marks. This is not exclusively a tank build, but my understanding is that I'll be able to increase my AC without sacrificing my DPS while using epic chimera fang. I'm also debating whether to take Combat Expertise over Shield Mastery. Shield Mastery makes more sense at least, since I can keep Power Attack running.

And this build is more for raid boss dps.. stunning blow might be useful, but I enjoy using improved sunder to decreases raid bosses AC / Fortification / Fortitude. It helps the entire party dish out a bit more damage, and I don't think any boss is immune to Improved Sunder. I'd even swap Shield Mastery AND Combat Expertise if I really felt I needed a combination of both Stunning Blow and Improved Sunder.

So with that in mind, I have 4 feats, but can only take two of them... they are

Shield Mastery
Combat Expertise
Stunning Blow
Improved Sunder

I'm willing to swap them around but at cap, I'll have to choose two of the four. Suggestions?