That's more of a difference in often/long you'll be using it. You're seeing a difference in intended use cases if that's the focus point to be honest. The quicks can range up to moderate use, the singles are usually on small or top handle saws, and the doubles are on medium through large saws. The Pro series and quick saws feature retained hardware, the homeowner and farmboss saws use loose nuts that can be lost.
I've used them all, and the only real preference I have is that the hardware is retained, but it's not a necessity. The Still 251C and battery saws (had the plastic flapper, no scrench needed) were no more likely to come loose than a single nut, or a double, if the bar was properly set and the tension was correct for the saw.
I'm just a homeowner now, and my current saw is a battery unit that sets chain tension as you tighten the single hand-nut on the clutch cover. I would have liked a smaller saw to be truthful, but most of the ones have non-standard pitch/gauge combos that would have tied my hands in the future.
It balances well and cuts fine, even with a fiber/polymer drive sprocket (it's an e-Go, as I use their battery stuff for the yard gear I have).