Mac OS X is a Unix-like, so...yeah. ;) :D

OSX 10.5 and 10.6 are not Unix-like, they are Unix ;)

Yeah, OS X has been certified UNIX for a while now.
http://www.opengroup.org/openbrand/register/
Like HP-UX, AIX, and Solaris.

OSX is UNIX, but it's not Unix-like.

... and *BSD more Unix-like than UNIX.

Certified UNIX is no more than a label you pay for.

Well, it's the modern definition of UNIX. I think of Linux, *BSD, and certified UNIX as varieties of UNIX. The original UNIX is gone...

I use and prefer Linux. Unix like HP-UX and AIX is obsolete in it's current form, and so is BSD, but I especially hate FreeBSD because I remember when it wiped out the bootloader for my Fedora install on a neighbouring drive for no good reason. I had to use testdisk to recover my partitions, so you could say I have a grudge on FreeBSD.

What about Solaris and Plan9...?

are these not Unixes as well?

Plan9 ( from the same guys who created UNIX ) is in its beginnings right now... it will take them years to have the HW support and apps that Linux haves already...

But (Open)Solaris seems quite modern and usable right now...

Too bad i do not know how to build an app from source using SunStudio, or that HW support is more limited than in Linux...

I thought Plan 9 isn't a *nix, but something new.

OpenSolaris is interesting to me. Right now I'm using Debian and learning a lot. When I learn a lot, I'm planning on trying LFS again, and BLFS. I finished most of LFS before, but didn't complete it. I just want to learn a lot more (which I was planning on doing anyways) before I use it again so I'm more comfortable with what I'm doing instead of just reading the handbook. I tried FreeBSD just recently and liked it a lot but it's sort of a hassle to update and I want to stay busy with other things for the time being.

This thread is dead, but I am going to reply any ways.

I use Linux because of its support for exotic hardware. I used to do that Linux thing mentioned in the first page. It got to be a pain in the a**. I gave up after two people told me windows vista is the fastest OS ever invented. At that point I said "Who cares.". Now I use Linux now only because of Gentoo's package manager.