I'll always take a belt driven one over a direct drive. HP ratings mean nothing to me any more because years ago you wouldn't have had a chance of running a 5 HP on 120v. Nowadays, they'd have you believe that is 5 real HP. CFM is what to look for.
For what compressors sell for on CL, you might keep the 2nd one for a back up. I had 5, I'm now down to 4.
