I like Megatron. Thomas is clearly the back to have in NO now. Bush will put up good numbers, have some huge games, but will be too inconsistent overall to warrant keeping him over a freak like Johnson.
Calvin Johnson: 1300 rec yds 10-12 td's
Reggie Bush: 550 rush yds, 650 rec yds, 8 total td's
I side with Megatron. Brees has other weapons to target in Colston, Moore, Shockey, Henderson, Thomas. In Detroit, everything is Calvin Johnson and Kevin Smith. Much more potential to produce. Sure he'll be double teamed, but he was last year as well nd look how he produced, and with a battered group of far less than average qb's throwing to him...no reason to think his stats will fall off this year.