(2) Less healthy = great social circle at work, separate great social circle outside of work
(3) Even less healthy = no social circle at work (just a job), great social circle outside work
(4) Worse = great social circle at work, no social circle outside of work (I never seen this situation. If you have a great social circle at work it's practically inevitable you'll do things outside of work)
(5) No social circle anywhere
This being HN I know lots of people will rebel against (1) but there are tons of stories about friends starting companies together and you can be sure they loved spending time together both at work and outside of work.
Just to make it more concrete I can't personally imagine The Beatles just calling their music "a job" and not getting close to their fellow band members. Sure that's a band but it's not really different from other famous business friend founders. I'm pretty confident Larry and Sergei socialized with each other outside of work. Hewlett and Packard. Steve Jobs and Steve Wozniak were certainly friends when starting Apple and socialized outside work.