I think probably more important than either of those will be constant speed. I have read post after post about guys who swear by perfect pass and I have to agree with them. Getting a consistent pull at a consistent speed will probably help you progress faster than a pylon or bigger wake. If perfect pass is not an option, get a good 4-blade prop. If you talk to a sales rep and get the right pitch prop, it will greatly help keep your boat speed more constant and then you can worry about building your wake, etc. later. Just get a boat load of buddies and have a good time.