All we used in the old days was copper fir supplies. I would choose that over plastic.
Stainless Braid usually has a higher grade of rubber washer for the seal insead of a ferrule. The stainless braid is a easier install and is available in assorted lengths.
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I've had too many copper compression supplies start leaking on me. They don't do well with being touched. One little bump that nobody things of as mattering, and you've got a slow oozing drip that eventually rots the cabinet and floor underneath before anyone notices.
Stainless braid is fine if you're planning on reconnecting the hose several times in a short period. But after 5 years in service, that rubber seal is probably as hard as wood. It may not leak if you don't touch it, but if you have to loosen it for any reason, the best advice I can give you is to toss it.
Plus, 90% of the "stainless braid" hoses on the market today have plastic braids that are merely stainless in color. They're total ****.
I'm not recommending polyethylene line for ANY uses. That stuff sold in ice-maker kits is a time bomb, known to blow out for all sorts of reasons. But PEX supply lines have none of these issues. They don't degrade over time, and they have the flexibility to remain well sealed even after a little jostling.
I'm not a plumber by trade or anything, but I only use stainless braided, and if there is extra length I coil it up. I've always been able to buy them at least close enough in length that maybe I have 1 or 2 small coils of extra hose, no big deal. I've never been in a situation where I've got say 5 extra feet of hose to "hide"
+1 A full loop in the line is ALWAYS superior to an S bend. Those S jogs put all sorts of stress on each end.