We've all probably got a pet peeve about the way important information is given to you.
There's a good number of things I could name, but these are my top 3 that I hope to see in a future minor patch:
1. Make the selected character much more visible in combat.
2. Make the current actions of each party member easier to see without having to select them all
3. Put random playable character sheets on loading screens and allow me to mouse over key words or scroll up and down their stats screen