Ok first off im actually curious what kind of blades people use. i use stanleys, but theres goto be better out their. their pretty weak if you ask me.
But for Snips my mind is made up.
The Midwest snips
With a replacable blade, big handles for those swollen roofer hands, and the power to cut shingles like butter, also good for cutting square cuts for various metal work, drip/rake edge, flashing etc.
And for more technical cuts for flashing and what not.
The Lenox snips

They defiently go the extra mile. longer handle then the traditional wiss snips and a lot sharper to.