It's funny how, in Mass Effect, the "Onyx" Armor was among the worst in the game. But yet, in the sequels, every armor for Shepard with the exception of a handful of sets that can't be customized all feature the N7 badge.
Not to mention that, in both ME2 & 3, Shep's default armor heavily resembles the old Onyx gear from ME1. To be quite honest, I ran the Kassa "Colossus" series armors on pretty much everyone in ME1.
EDIT: Also, the starting guns in all of the main ME games, since I'm thinking on it. The exceptions being the M-3 Predator in ME2, and the M-8 Avenger in ME3. Just my opinion, of course. But still, starter guns in the series are generally crap.