something which bugs me

Super Street Fighter 4

Ok, so you can choose between 2 ultras, hurray. But I notice most ultras (if not all) uses the counterpart of what their first ultra was. I.e x3 kicks instead of x3 punches for the 2nd ultra.

Here's the kicker, if you can only have one ultra anyway, why not just have it x3 punches and keep it that way. He is, afterall, using his fists.