I don't think it really matters one way or another as far as how strong each team is. The second method might do a better job of ensuring that a group isn't accidentally overpowering.
However, it opens the door to humiliation, right? Who wants to be last?
If your takin' your girlfriend out tonight
You better park the car well out of sight
'Cos if they catch you in the back seat trying to pick her locks
They're gonna send you back to mother in a cardboard box !