All of these are my opinion and are at least somewhat objectively decided
1)1983 - I don't think they've ever been the absolute best robot in any one of those years (one could make an argument for 2015), but they have been top 3 every single one of those years. They always make quality stuff.
2)1318 - their 2012 robot was ok, 2013 should have gone to worlds, 2014 they were the best in state, and 2015 one could again make an argument for best in state
3)2471 - Swerve is cool, and they use it ever so well. Tend to come up with unique and creative designs that work well
4)2046 - Best robot in the state in 2012, solid design in 2014, and a very successful year in 2015 with an ok robot. 2013 was a bit of an off year, despite giving us 2 blue banners :v
5) uhhhh... 360/2557/3663/488/2907/1595 - there's too many strong teams left and not enough places to put them, and I can't really single one out as significantly better than the others
Also oregon, because go PNW region!
1)4488 - And they didnt even exist in 2012!
2)1425
3)955
4)1540
5)2550