@julian Each character has a different device, Franklin has an Android phone, Michael, an iPhone, Trevor has a Windows Phone. It's very cleverly done.
I don't believe the social club log in was a requirement was it? I know GTA4 on PC required Games with Windows Live, which was, vBulletin basically. (That should be the new term for awful. )
Vice City was a great one, I've played them all, possibly the only game franchise where I've bought every version of it. Gran Turismo was another on that list, but I didn't buy 6. Mainly because I'd gone over to Xbox 360 by that point. But I'll be getting a PS4 again. The Xbox One is a disappointment from what I've seen.