Hey thank you for the detailed feedback. Hugely helpful and resonates with other feedback I'm getting.
The good news is, I'm going to be spending more time on controls. I have a few fighters on PC and see what common patterns they implement. I obviously play them using a controller. Speaking of, I in particular really want to introduce gamepad support. Unity has been a pain in this aspect.
Special moves and even grabs were part of the original plan. I actually made around 30 combat animations but ran out of time to implement them. So certainly something that will be updated over the next few weeks. These new moves will give a lot of personality to the characters as you put it.
UI Controls are certainly odd and a pain. I'm considering adding full mouse support. Hope consistent controls will make the UI faster to get through. Likely this will mean player 1 picks then player 2 picks in turn but should be smoother than swapping controls.
Again thanks for the Critique and hope you can check it out in a few weeks after some updates. :)