This
site is nice to reference for a number of models of tonneaus. The only thing I don't like about the fold-up design is if you are hauling where the cargo would be up against the front panel. While the tonneau can be removed for those circumstances, a roll-up is nice for those situations. Access and Truxedo make nice roll-ups if that is the direction you want to go.
I am still debating on the best overall tonneau for my truck in that I like a low profile look. Got to love the the look of the NewVision laser cut aluminum cover.