Neither the stunts were creative at all. I didn't really like any of them in particular. Biel's stunt is old with every single 2-wheeled vehicle, so there isn't any new aspect on it, and ScreaM's stunt is average because using a "ramp" (which is basically the case there) makes a faggio/pizza boy stunt look like anything but a pizza-boy stunt.
I wanted to see some creativity here, something new... Why didn't neither of you abused of the stoppie glitch (that makes the bike stand 90o while on halt), why did you land something just like someone with a sanchez or freewat would? Pizza-boy is meant to be used as a pizza-boy, not something else.
My vote goes to ScreaM because the stunt is not overused, and it is harder than Biel's.