Solaris & OpenSolaris. Back in the day, I used to like OpenServer, too.
Sometimes, when I need other OS, I install FreeBSD in virtual machine. I had no contact with his "siblings" yet.
Linux? no, thanks. I don't want it even for free. I tried it few times. Every time something didn't work, or nothing worked as it should. And it takes hours, to find a way to do something I can do in seconds on Solaris or OpenServer. So, the exact answer is: NONE.
I use Windows and *Solaris for daily operations.
Sometimes, when I need other OS, I install FreeBSD in virtual machine. I had no contact with his "siblings" yet.
Linux? no, thanks. I don't want it even for free. I tried it few times. Every time something didn't work, or nothing worked as it should. And it takes hours, to find a way to do something I can do in seconds on Solaris or OpenServer. So, the exact answer is: NONE.
I use Windows and *Solaris for daily operations.