Originally Posted by
Waylayer
First, I would drop extend. In the current game, extend only applies to buffs. At your level, most buffs should last an adequate amount of time. The exception being haste/rage/displacement. Personally, I don't have use for a feat that benefits only 3 buffs.
I am also a fan of quicken, there are times that you just don't want to be interrupted. Except for buffing, I pretty much never turn quicken off.
Lastly, the spell choices - in the last tiers - are extremely limited. Even if they weren't, you would likely want to have the occasional CC or insta-kill spells; I have no compunction, whatsoever, about grabbing spell penetration as a feat.