After reading up on 3rd edition, Frank and K's Tomes, Conan d20, playing 3.5, Pathfinder, Kirthfinder, and many other houseruled games, I've come to realize something.
The rules you use don't actually contribute a lot to the actual play.
It's been pointed out that large-scale houseruling ends up mostly unused. And I've seen that with Kirthfinder. (I promise I'm starting to remember to count my battle fatigue penalties Kirth!)
But even minor houseruling doesn't change the balance all that much. And I certainly don't see Pathfinder as any more balanced than 3.5. The pivot point just moved a little.
I even see the skeleton of 3E when I do a deep look at 4E, past the flesh and makeup. (Maybe not in that order.)
Really, the group you play with has the greatest impact. How high your point-buy is has a far greater effect on the game than swapping PF CMB/D in place of 3.5 maneuvers.
Your group will find the balance that works for them with a little settling. What rules you use are really more like the pink handlebar tassels on your bike.