Worst :
-Giving up 1.0 awesome cutscenes
-Removing the animation transitions, making the character stiff.
-Lalafell's walking animation.
-Butts removal
-Egi
-Hair transparency, not attached to the skull properly
-Awful texturing..
-Lazy Au'ra design/catfished.
-Limited BLU
-Not enough DRG jump(I wanna spam jump)

Best :
-Optimizing the game from 1.0
-Glamours
-Vieras.
-Story/Lore
-Interesting characters.
-Character customization
-CrossOvers
-Beautiful world.