I would love to see a complete rework of healing. I would like to see less of it in the game. This would change the role of clerics ( perhaps it could be somewhat like the old Marshall class) and maybe more people would be willing to play the class if they were not a slave to healing.
I hate the new smite evil and Archery seems Broken.
I would love to see feat lines used to cover old prestige classes an example would be combat reflexes, dodge, mobility, would allow for a new feat called blade dance which would allow you to take a full attack during a move action.