>>47095064A strong, competent, quiet-but-speaks-if-he-needs-to-or-to-make-an-observation-or-snark Metal Sonic is the best combo. Something like how Metal Sally is right now, and as the leader of the Metal Series he should definitely be the cream of the crop.
And yes, we all got pretty tired of seeing Metal Sonic constantly being gimped and jobbed and showing up for a random throwdown and being beaten in three pages. Hell, how many times did Metal Sonic show up during and after the Genesis arc? Eggman even blew one up to try to kill Antione.
Though personally, I'd love to see a Robo-Sonic trio of specialized Sonic Killers. Metal Sonic, Silver Sonic, and Mecha Sonic (from S3&K). Metal Sonic has the speed and agility, Silver Sonic has the size and power, Mecha Sonic could be the sneaky and crafty one.