From simply a use standpoint, I prefer double triggers.

My Citoris, Rem 101, and one SKB Ithaca are the only doubles I have with single triggers. They all work flawlessly of course. It is simply a matter of personal preference.

With double triggers I essentially have two guns. I have had a firing pin break at inopportune times. With two triggers I still have a functioning barrel. With a single trigger the first barrel would be okay if the second barrel pin broke. If the second barrel was the only one that worked I'd have to snap, rap the butt with my palm and then be ready to fire.

Alan