[ratdude747]

my vote is for mecanum. here's why:

the pushing arugement is valid but overplayed. you can push but mecanum can just slide sideways out of the way.

mecanum would make hanging tubes so much better as all you have to do is get to the grid and slide into position.

lining up for minibot release is another spot where mecanum would pwn. getting lined up is critical and mecanum would allow one to back up and slide into position. with 6wd, one would have to either get it right the first time or pull forward and try again.

not to mention the tube loading areas are narrow. once again, being able to slide makes lining up w/o getting stuck a lot easier and quicker.

anybody who has parallel parked will know how being able to slide would be helpful...

i see it as this:

if you want to be a defensive dozer go ahead and use 6wd

if you want to score and do it well, mecanum or crab (if you know what you are doing).

my $0.02