Nah, it's probably "technical" enough of a question to go here too. Either location would have been legit I say.
The BC ones are well thought of by most users. Steel all the way and usually well laid out. Maybe a couple of real fitment issues over the years, but with most having only minor tweaking to do.
And I bet most of that tweaking comes about when we build from scratch and something else is in the way of a pre-made line. Whether BC's or someone else's.
Or maybe we don't like the precise location of a bend or termination, where other users think it's perfect for their Bronco.
A gas tank that's laid out differently from what a kit was originally designed for is another possible tweak-waiting-to-happen during an install.
In other words, your results may vary, but the overall quality is very nice.
Flexible stainless braided line is, well... More flexible! I admit I did not think I'd like it as much, but after doing a couple of Broncos in it I'm a huge fan now. I think I still prefer custom bent steel (doing it myself) but man, you can't argue with how easy it is to route them in general, make a quick change of routing when something ends up being in the way, and just general cool looks.
Once it's done and you've used line clamps all along the length (and not zip-ties!), it actually looks very professional as well. No complaints at all.
I'm not familiar with any vendor kits other than BC's involving hard lines. I've bent my own, used the factory plastic lines in conjunction with some metal tube and rubber hose additions, used the braided stainless, and each one has merits.
I would never run plain rubber hose the whole way, but it's not because it looks cheap. It really does not look bad to me when done neatly, but it just doesn't last! Probably a lot of modern hose of questionable quality would not last more than a couple of years.
And I definitely don't want to re-do it even every ten years, much less two.
If I never have to do it again, that's what I'd want.
So far the braided Broncos I did are still on their first setup and one is about 15 years old now. The teflon liners and stainless outers seem to hold up well. No leaks and still looks amazing.
Very hot-roddy I suppose, but I like it.
Paul