If you can get a chance to ride both, I highly recommend doing that. I know the idea of a roll cage sounds good, but i think it can also give a false sense of security. They are still pretty easy to tip.
They also have 4 seater side by sides, which we briefly considered. Those start to get really big though, so storage becomes a consideration, and transportation as well. They are quite expensive as well.
https://www.google.ca/search?q=polar...di5_ad-RWrM%3A