I actually haven't heard of CopperheadOS before but I chose Replicant because it's a project backed by the Free Software Foundation. I thought I'd give it a try

I actually haven't heard of CopperheadOS before but I chose Replicant because it's a project backed by the Free Software Foundation. I thought I'd give it a try since I'm slowly moving over to the FOSS world for everything and I wanted to support them. :) I actually bought a phone from Tehnoetic with Replicant already installed. Should be here any day!