Both Icons and Supers RED have their merits. But, you can make Icons a player-facing game only, which speeds up play because you (as the GM) don't have to roll in opposition. Supers requires every roll to be opposed and this means waiting for the player/GM to get online and post.
In Icons you roll rank+D6 vs rank+D6. So if you just provide one side's rank as the difficulty, the other side can roll (D6-D6)+rank and immediately see whether they're successful or not. No waiting and you can narrate your turn and get on with it.
Plus, Icons has its basics available through
OGL, which Supers! RED does not.
Aaaand, I've run Icons enough times that I've typed up the Icons universal table in RPOL table format, so if anyone wants them rMail me.