This includes me; so my proposition is to make the finishing moves an active button, which can be triggered if the enemy has very low health (lets say 15% or less).
In this way the combat doesnt only eye better, there is also an extra technical combat option. You can decide if say a normal attack would do 7% of the enemy target and it has 11% left to do a long finishing move when it's the only enemy left. Or if there are more enemy's around to not make you vulnernable and just go slashing about.
I dont know if this is simple to adjust, and if the consoles have enough buttons for this. I'm curious what other people think about this idea.