Peter wouldn't have been a teen. That or played by someone looking like one, to say the least. Look at Robin in both Batman movies. The man clearly looks like he's in his mid-20's, in no need of being fostered by Wayne.
I'm sure Uncle Ben would have been much more aggressive. He'd make it seem that Ben was influential, but he'd place Peter's anger for him as a focal point, and not mark it up to "teen angst."
I could make jokes about spider-nipples and the bunch, but I'm sure other will do that for me.