I have two thoughts on Patterson
1) Dusty Baker really screwed the guy up in Chicago.
2) He does not know the strike zone, which leads to a low OBP, so teams don't want him leading off or batting second. Thats been the knock against him.
He's the perfect number 9 hitter in the AL. He's got speed you want to take advantage of at the bottom of the lineup, plus he's got pop in his bat, and who cares if he strikes out a lot in the 9 hole.
IN deep 12 team leagues, I would give him a bench spot. I'm in a 12 teamer, and he has been added a dropped three times already.
In a shallower league, I think there a better options until he can improve his OPS and reduce his K rate. I'm in a 10 teamer, and he's been added/dropped once.