[PF] Feats for antipaladin villain?

[Jeivar]

I'm running my first Pathfinder campaign, and I'm currently statting-out the main villain. He's a level 9 antipaladin in heavy armor. I'll probably give him a greatsword, but I might also go with a haldberd or just a longsword and shield.

Suggestions?

EDIT: Forgot to mention: He's an Aasimar.