I notice that most people on this site like robots with treads. I used to be a fan of treads too but after seeing videos like the ones below I think there are better designs out there. Even 4x4 does pretty well when you look at rock crawlers like the ones in the 4th video
What is your opinion? What is the best or the coolest design you've seen for an all terrain robot?
Have you seen a design that is just "too wierd"?