I prefer it a lot more. Maybe it's just my circle of friends, but we laugh at how stupid Venmo's Facebook spam is and generally prefer how easy Square Cash is to use. Since the money ends up right back on your debit card, it's a lot easier than maintaining a Venmo balance and having to deal with that.
I signed up for Venmo a while back to try their API at a hackathon. They then decided to freeze my account and send me a barrage of questioning. I didn't bother.