perhaps not too many of us are submitting video.. i dunno.
I have tried adobe premier and it works well, I am not sure what all the specs are for submitting, but if i were you i would download the free trial and give it a try. It seems to be quite comprehensive, and it is probably more 'speed' saving things and perhaps a little bit of control that differentiate it from adobe premier pro - as that seems to be different between adobe photoshop elements and pro.