I'm a huge fan of acrobatic type moves, so i'd go with something fast but effective. It has to have an impact, it has to create excitment as well. I'd go with a standing shiranui, And the reason for that is there are so many different ways to make that move look fresh. You could use anything as leverage to flip over, you could just make it something amazing.
Another move that i really admire, is a tiger bomb, but i'd kind of mix that into a collaboration with a sunset flip type move. It's pretty confusing to describe but if you use your imagination you'll see what i mean by that.