Rigid R+
I have a pair of Rigid R+ lights that I picked up last year at Oshkosh. They appear to be well designed and well built. They project a well behaved beam pattern, and are unbelievably bright.
Unfortunately, I never got a chance to see a direct side-by-side comparison in action of the Rigid R+ next to comparable products from AeroLEDs (most direct comp: Sunspot 36LX). Doing that Pepsi challenge would have been ideal. But short of that, my impressions from seeing both individually are that both are excellent products, but qualitatively the illumination field (intensity, peak and distribution) cast by the Rigid was at least as good if not better, and the Rigid was substantially less expensive than the AeroLEDs (similar list price, but the Rigid guys were willing to haggle, the AeroLEDs guys were not).
As for AeroLEDs, as I've said, I've been impressed by their product offerings, and I give them credit for being a pioneer in this niche. But I'm glad they're finally encountering some serious competition. Hopefully that'll drive further improvement of the product, and drive the prices down.