Keith Elwin on the Stern podcast stated that the premium / LE plays faster.
Mostly because the motorized up/down target guarding the raptor pen is going to add some speed to the game when it is in the up position.
The moving T-REX is definitely going to be a lot of fun. There are options in the settings to turn it on/off and levels to control how much throws the ball around.
I suspect the premium will definitely be a better version of the game, but the pro is no slouch either so you would be having a ton of fun either way you go.
The only bad thing about the Premium/LE right now is waiting!! Looking forward to the hinted code drop today see what additions have been added to the rules!