Which is Better? The 620 or the New Rose Bowl Board?

I have a 620 from Miggle, as well as their Original Electric football board. Players seem to run a bit more smoothly on the original board than on the 620. It looks like the newer Rose Bowl Game (also, Electric Football Challenge) is the same design as the Original Electric Football game, only it is bigger. So here is my question . . .

For those of you who have played on a 620 and the new Rose Bowl board, which do you like better and why? Thanks, Brian