Help!

[PinkysBrain]

I don't know if I should stay on the track of the "How-it-should-be" fighter after level 12 (When I get all the feats that I want), or if I should multiclass to Paladin at that level. Can somebody help me with that?

Combat prowess is an incredibly powerful ability (in fact it instantly transforms a character over the course of 1 level, dunno if I agree with that from a design perspective). Why would you want to give that up?

Warlord is incredibly good too, but it has some practical problems (playing 3+ characters at once and all, you better get good at deciding what you want to do really fast or the other players will get annoyed).