The greatest feature ever to be on a dive computer is on the VEO 3.0...backstep!! The thing goes forward AND BACKWARDS through the menus. This may not seem like amazing but if you are adjusting the mix on your computer and you press to 31% and your meant 30% it means not having to go all the way back around. Or if you're looking at your log and skip the dive you want, you can just go back on. The VEO 2.0 & 3.0 are the only "low cost" computers that do that as far as I know.
Plus the dual algorithm concept is pretty interesting. The Suunto computers are one of the most conservative on the market with Oceanic being on the other end of the spectrum as more liberal. The dual algorithm lets you choose between two so you can adjust to what you want.