I agree too that it is a matter of what look you want. Dolphin does alot of styles. I just didn't want the little dolphin picture on my gauges( and I'm a former Marine Biologist! )
I thinks as to quality they have been around a while now, and I do see them in a lot of rods at shows. I think the price factor really dictates what we buy, and by the time your getting to settle on gauges, most of our wallets are pretty thin! Since Your car is being built for you, I don't think you have to worry about install and calibration so that should make the choice a little easier!(or are you installing them?)