Snow Leopard + Leopard - THE LAST GREAT MAC OS X VERSIONS!
As the title says, it can be argued that many believe that Snow Leopard and to some extent, Leopard are the LAST of the TRUE MAC OS X Operating Systems. These days Lion and Mountain Lion are like TOY operating systems which have lost that Mac OS X feeling inside them.
With IOS integration getting stronger each day and Apple not taking the time in OS X development as they used to, Snow Leopard and Leopard really are the last great versions of Mac OS X and many continue to use them even today.
While Mountain Lion is nice and all, not everyone uses its features such as social networking features. For instance, on my 6-core Mac Pro I am running Snow Leopard as my OS of choice as a server given its solid rock-hard stability. Leopard I am currently running on my Power Mac G5 Quad and it is quite fast given the age of this machine.
For everyday tasks not requiring rendering or video encoding, internet browsing and emailing + word processing is pretty quick on machines of Intel and PowerPC running either Snow Leopard or Leopard. I have even gone to downloading a Mountain Lion theme for Leopard to make it look like Mountain Lion, but nothing beats the stability of Snow Leopard and Leopard.
I am only hoping that Apple continues to provide Snow Leopard as an OS of choice for those who need legacy applications and or run legacy applications. It just seems Apple these days has become a toy company and its OS versions of Lion and ML are nothing more than IOS copycats and toy operating systems, instead of real operating systems, such as Snow Leopard and Leopard.
Tiger has its place as well, even though its support base is running thin each day, I used to run Tiger and it was one of the best OS versions ever developed and perhaps the longest running OS.
Again, my opinion that Snow Leopard and Leopard are the LAST real Mac OS X versions are mine, and mine alone.. I am sure others would agree as well.