I may be wrong here, but unless my memory is all wrong, the Hex EZ can and Denali ar both made by the same company. The difference is that while most LED auxlights go full blast if connected to +12V, and in order to dim you switch the supply line, the Denalis are made for dimming with an external dimmer and thus have a 3 wire setup, where the +12V stays connected and the dimming signal is sent to wire #3.
To sum it up:
Basically the same box, except that the Denali box is adapted to dim Denali lights.
If you use Denali lights, go for the Denali box, if not, go for the EZcan box.
my 2c