Right now I'm #1 on the Street Fighter HD Remix leaderboards in ranked matches (Xbox 360). Ranked matches in almost every game eventually degenerate to cheaters and people who are somehow gaming the system with win-trading, but for now the top ranks do consist of legit players.
Also, as general advice to everyone, I wouldn't obsess about rank. If you start caring about it, it's really limiting. It's better to try new things, try new characters, and not worry about losing. Try to increase your actual ability this way, not an external number. When a tournament comes around (the real test), your ability will matter and your number won't.
You might be wondering which characters I played to get there. Akuma, Sagat, Honda, Bison, Vega, Blanka. In other words, over 1/3rd of the cast, ha. Weighted more toward Akuma, Sagat, Honda though.
Thanks for all the great matches everyone.