I had the #8 pick (12 teams league) and picked Rudi Johnson. Jackson was picked right before. I also picked up Chris Perry, Johnsons backup later in the draft. Johnson has had some injury issues but Cinci's OLine is one of the best out there. Having Chad Johson, TJ and the felon as WR's are nice to "loosen" things up.
that being said, either is a good pick at that point. If I had my choice I think I'd go Jackson as well but not by much...
Good luck