I used all summit brand fittings and hose on my Challenger. Not proud of it, but was on a tight budget and figured I'd probably be changing the setup a lot in the not so distant future so I didn't want to break the bank. 2 years later, no leaks (on 50psi EFI setup) no sign of deterioration of hoses even using their cheapest nylon braided while running e85 for a year. I hate to cheap out on something as critical as the fuel system but it does work and no indication that anything will fail prematurely.

I did have one of the smaller 6an swivels lose its swiveling ability after taking it off/putting it back on a few times. It made it a PITA to tighten and had to lube it up with a lot of motor oil to get the nut to spin freely. Didn't leak, and may have just been user error from me over tightening it.