Originally Posted by
Jeffbeerman2
I'm looking for a nice commuter-style folder.
If commuting (daily ride on city streets) is your need, you shouldn't buy a folder with the hinge in the middle of the frame. The pounding will cause the frame to flex. For heavy riding and a durable investment, you're right to consider Brompton, Bike Friday (especially the Diamond Tourist), Ori/Mezzo, and even Moulton if you've won the lottery.
Edit: Note that of these bicycles, the Bike Friday does offer a lifetime guarantee. According to another member of this site, the Brompton has only a five-year guarantee.