Personally, I'd go with the new Slim model. It's the latest generation, so presumably it has the lowest odds of failure.
Speed wise though, it's going to be exactly the same as the first 360s that went on sale like 6 years ago. The whole point of consoles is to provide a consistent stable development target. The hardware is fixed, so developers know exactly what it is they have to work with. And gamers also know that any game with the logo for that console, will work on that system. There's none of the upgrade treadmill like with PC gaming.
I already own 2 ps3s. One for me and the next for my younger brother. I am moving over to the capital for college and I wanted to know which 360 should i get?
The elite or the new slim. Which has a less chance of failure rate, scratching discs and is faster in speed?
Also any other accessories and games i should pick up?