Lowell will probably have better numbers at a more shallow position, he's the easy choice for me. He was the #2 3B behind Pujols last year until he was injured. He had comparable stats to Chavez and Rolen in 25 less games. Factoring in Sweeney's injury risk and the fact that above average 1B's like Sweeney are a dime-a-dozen, and I'd take Lowell in a heart beat.
"Jack, will you call me, if you're able?"
"I've got your phone number written, in the back of my Bible."