Also consider Noppoo Choc Pro and Rosewill RK-9000BR. The choices between those come down to aesthetics, price/availability where you're at, and stabilizers. Leopold uses Cherry stabilizers, all others use Costar. Noppoo has true NKRO over USB, but also has a little font weirdness on the keycaps (although they're really nice feeling caps IMHO.)
Personally out of all of them I'd probably recommend WASD for an out of the box keyboard, because they're really nice boards and the customizable keycaps mean no compromises in aesthetics.