I've actually had both the Ridgid and the Bosch.
Both are excellent tools for jobsite saws, though, obviously, neither is a cabinet saw. Both are very accurate & very easy to use.
I read all the reviews and the Bosch is the consensus favourite, but I think it is marginal. I bought the Ridgid because it was simply too good a deal to pass up on sale. That saw was stolen from a jobsite, and the client actually bought me the Bosch as a replacement.
There were actually small things I preferred on both saws, but I can't remember what they were now apart from pneumatic tires on the Bosch and on-board storage for the blade-guard on the Ridgid. (I hate the things anyway as I feel they are unsafe!)
Those two brands were essentially the only choices for a saw on a collapsible wheeled stand at the time, but I've noticed new models from at least DeWalt & Makita since...
Although the Bosch may be marginally better, the Ridgid is a better value on sale.