I really like my 580L 4WD for snow removal.
I built a 14' pusher for it 7 years ago and have not put my snowblower on since.
It takes some getting used to, but I can move snow a lot faster with it than with my snowblower.
If you don't have the 4WD locked in it makes a big difference in what it can do.
The pusher I made is made out of a heavy I-beam and I think that helps a lot.