One change that I think needs to be reverted are the new buff graphics. Although they look a bit nicer I've noticed that they are a little too hard to see when it comes to team fights. A great example of this would be Cho Gath, when fully stacked his buffs are almost not visible due to the graphics not scaling to his massive size.
On a side note, an old topic but I've never really seen an answer to it:
Why doesn't a clone have the graphics for the buffs? I wouldn't want to the clones to actually possess the power of them but I feel like having a buff makes it near impossible to trick anyone with the buffs floating around the actual champ and not the clone.