The 2009 robot went by the name "Redemption" after our, well, um, apparently the team did put a robot on the field in 2008, contrary to results. Some members called by the name "Mephistopholes" since the 2008 robot was "Dante."
I like looking at our last two years, and this year, as the Redemption Series. The goal of the name is to build the team from the ground up, back to a level of function admiration and respectability.
2010 never was officially christened, but "Ahab" was usually used. We had a pretty killer harpoon kicker (that worked once), and there was some salty language to be had during the sort time it had to be built. It was also a tough, crazy robot. Very overachieving.
2011, our build lead has chosen "Gurren" for the hostbot and "Lagann" for the minibot.
For those who don't know, it comes from the anime
Gurren-Lagann, and the reasoning behind its usage can be seen
here.