Which would you say is better for stability and saddle roll? Thanks !

Roper style hands down, except on one gelding I have hes got a straight cinch since hes so shallow/short underneat.. A roper cinch is just too much for him..

And a droped rigging is good for helping to keep a saddle from rolling too.

I love my sensor flex roper cinch. Feels more secure and even. 

Thanks all! That's what I use mostly see sensor flex cinches. My new barrel saddle has a 7/8 rigging and i have never had one of those before. I love the concept but having to use latigos on both sides, and make sure they are pulled exactly even on both sides has tested my patience. Lol thanks all! 

I prefer the roper style cinches

Roper sensorflex is my favorite