in my limited experience, i like ISS increased AVA on REMs. but to be good with REM, you need to be good with hacking so i'd vote Nomad. Also voting Nomad for Meteor and Pi-Well.
CA can also give Nomads a run for their money... Granted, Unidrons are not that great remotes, and Overclock won't work... but Ikadrons... and a S3 combi-toting EVO...