Agree
2. Makes sense because it prevents people from accidentally choosing abilities and not realizing they have them.
9. Yes. At the absolute minimum, selecting a new character shouldn't result in all other characters scrambling around to new positions.
(Partially) Disagree
1. Common ammunition should be infinite and not require management. Having to buy and manually equip normal arrows is needlessly tedious. I agree that there should be a slot for special ammunition, so they can be automatically used - not requiring a dedicated action-icon to fire. But leaving that ammo slot empty should default to normal ammunition.