Except for GTAIV on PC, that was just shit... At least so I've heard; I was given GTAIV for PC for my birthday a couple of years ago, but have never installed it. GFWL, Rock Star Social Club and bad optimization (my system is 5 years old) are the three big reasons. I've played III, Vice City and San Andreas on PC (I don't have any consoles) and loved them, so I couldn't wait for GTAIV. When it finally came out, after hearing about all the issues and unnecessary hoops to jump through, I held off from buying it.
But I agree, PC version is the way to go. I had modded all nearly all the cars in San Andreas, there are some really beautiful models to download on the internet. I even had the dune buggy from Half-Life 2! Hm, maybe it's time for a reinstall of San Andreas...
Oh, and yeah, GTAV definitely needs to be on PC. But they have to do it right this time, no BS.
"In the beginning the Universe was created. This has made a lot of people very angry and been widely regarded as a bad move." - Douglas Adams