[evanperryg]

Arranged them in order of importance

10) Radio connection reliability: I will be honest, it makes me furious when a robot loses connection mid-match, especially when the refs ignore it.
6) Code download time: Again, this makes me mad. Either the event needs to compensate for poor upload times or the poor upload times need to be fixed. It is not the fault of the team that code takes 20 minutes to upload.
9) Software reliability: Even if it isn't the fastest, or the most efficient, it should work as intended at least 98% of the time.
4) IO capabilities: More IOs make for more options for robot design. I have a feeling that in 5 years, FIRST will have outgrown 10 PWMs. As it is, my team was planning on using all 10 this year(ended up using 8)
8) Durability: It should be solid. I'm not saying every electrical component should be in a huge enclosure, but a control system shouldn't be/feel flimsy.
5) Radio bandwidth: We maxed out at 6fps@160x90 on our camera. Bad, but few teams actually end up effectively using their camera, anyway.
1) Processing speed: It should be responsive. I'm not saying we need some kind of quad-core, dual FPGA thing but we shouldn't be trying to use an Arduino, either.
13) Compactness: Tiny=better. Trying to cram a cRio and sidecar into the amount of available space on my team's bot this year was a nightmare.
11) Boot time: If you can get it under 20 seconds, great. But, what is more important is performance after the boot sequence is over. Anything over a minute, though, is a problem.
2) Code space: Has anyone ever actually run out of code space on the cRio? The amount we have now is fine.
12) Price: As long as we still get one free one from FIRST, there is any huge concern over controller cost.
3) User-available RAM: We've got plenty right now, but more is always nice.
7) Clean programming interface: I prefer text-based coding to gui, so I don't particularly care about this one.

tl,dr: Vex does everything right that the cRio does wrong, and the cRio does everything right that Vex does wrong.