I couldn't see a difference in any of them, other than aesthetics. Circular piece of sexy billet, couple bolts, and a brass hose barb. I just went with ADP because you don't have to drop the tank. My sender is effed so a tank drop could get real chitty depending on the fuel level.
Of course I can see why you're partial to BDP as I laid eyes on the one they made for you. Pretty badazz looking.
@ Leaton1, what does that sump say? Custom engraved?