Means of feeding? High loyalty street doc. Nobody open the freezer in the cellar.
Superiority? I went with a Fomori Fomoraig melee tank and have seldom had so much fun with a character. Big dumb gentle giant (until he bought off his mental handicap and got a cerebral booster) with common sense. Wrestled an augmented juggernaut into submission (couldn't hurt it, but it definitely wasn't going anywhere). I made up for not having regeneration by loading his soak so high that nothing could really hurt him, then put in a pain editor to handle the occasional stun. Arcane Arrester is (.)(.), though.
Frankly, I find the "all Infected must be ravenous monsters" line tired and uncreative, and a version of The Stormwind Fallacy. Interesting characters are made by their quirks, their interactions, and their flaws, not their bonus and templates. Burke's crew loved that guy. When the rigger got herself some whiz new cyberlegs, she had the old ones butcher wrapped for him. He was a dapper gentleman about town, with a dazzling kitchen to support his Artisan 5 (Cooking +2). At game start his only goal was to get a digestive expansion system so he could eat real food (Media Junkie - Cooking Shows). Once he got that, he immediately failed his addiction check for augmentation and spent the rest of the campaign obsessively upgrading himself (Mental Handicap x2 = fail on most addiction tests since it corrodes both sides of your dice pool, I discovered). His standard engagement tactic was to put on his post apoctalyptic (18 inch pink metal spiked mohawk, tyvm) riot helmet, hit the AR go time button to turn on his extra loud Troll-core noiz, AR and holographic images of violence and war, and then bust a Kool-Aid Man to get to where the fight needed to happen. Once hit a helicopter with a bowling ball. 2 players got weepy when, after getting put down in a fight and rescued by the team, he hid in his escape tunnel's bog cave where he kept the only things left of his mother and childhood and listened to a recording of a lullaby.
Humanizing an oddball character can be a fun RP challenge, and should be attempted when someone is ready to really test their RP chops.
On topic, though, screw the troll infected, play a Wendigo if you're looking for the superior build. No matter how much philosophy or RP rationalization I give, nobody ever lets me play a Wendigo.