The important thing to note is to only track stats you're actually going to use. Speed is good to have - but it will be evident in scoring ability.
Here's my list as of now:
- # of Tubes on rack
- # of Tubes Misplaced (put in wrong position for a logo)
- # of Tubes Dropped
- Time on clock when Minibot scores
- # of Tubes Passed
What else would you need that's not subjective or obvious?