Personally, I'd like to see weapon* and armor** use become skills. Maybe magic*** too. I miss the like of the fighter's quick attack advancement and just being better in melee combat than the other classes.
* I'd go with groups, like Blades, Axes, Bludgeons, Bows, etc. rather than individual weapons.
** Being proficient with armor in this case would let you add your PB to AC, and maybe allow for certain stunts, along the lines of Shield Bash/Rush and such
*** Probably broken down into groups, such as Abjuration, Necromancy, Earth, Geomancy and the like. Could make skill checks replace save DCs (caster becomes active, needing to beat enemy's static save DC) and Spell Attack rolls.