I had my own personal shop hop last weekend and bought fabric at three different shops (between shopping and hanging out on this board, I may never get around to actual sewing, but that's another story.) At two of the shops, the clerks cut my fabric, but at the third, she tore it. I remember, years ago, cotton fabrics always used to be ripped, but I have gotten so used to seeing it cut, I had forgotten and it was almost a shock to see it done.
In my experience, some ripped fabrics get weird along the torn edge and you have to trim them before use. That didn't seem to happen this time, but it is the reason I think I prefer cutting. I know you get a reliable straight of grain on ripped fabric, but I think I like it to be cut.
Just wondered about others' experiences and preferences?