[Kevin Sevcik]

I'll toss in my 2 cents and say that I don't think that any robots or strategies are invulnerable this year. Ken has already pointed out that 2 robots hanging immediately will give free reign to the small ballers and cappers. Simillarly, one could assume that small ballers and cappers are not going to be good at hanging from the bar. Thus, efficient, quick hanging robots should be able to spend a large portion of the game defending players stations and keeping such teams from delivering their small or large balls. The balling teams would either then have to block the hangers from getting to the bar, or get to the bar themselves, etc, etc, etc. The strategies and counter strategies can go on for a very long time. The only invincible robot would really be one that can do everything and do everything very well, but that's the case every year and if a team can build that bot in 6 weeks, kudos to them.
I'll say the best strategy to win this year will be good scouting, knowing your strengths and weaknesses and those of your enemy, and knowing how to capitalize on said strengths and weaknesses.