Personally, I've been more impressed with the 2 blade version. They have consistently proven to do more damage and are more durable then the 3 blade version.
For the best Rage results, the Titanium Rage 2 blade is an entirely different monster! Their ferrule design is MUCH improved and the considerably larger and more edge to edge cutting tip on the Ti model is simply amazing compared to the much cheaper aluminium version. No contest,..... they are a bit cashy but man they are impressive!!!