Greatest Hits for library

With Greatest Hits (or Platinum/Essentials, Classics or Selects in my case), it is a case by case scenario. Often got them since they were much cheaper new. Recently got Lego City Undercover on the Selects range because the game has been pricey whether new or used and it came down to a reasonable price. Sometimes the budget range copy is the only one that I can find. Much of the time though it is the original version.

Best type are ones that have extra content in (e.g. Fable 1 and 2 have more stuff than the original release) or in modern gaming GOTY versions on disc (e.g. Red Dead Redemption) however it isn't as common especially for PAL regions where bugs that might have appeared in the NTSC versions got fixed, reason why many Greatest Hits versions have changes while the Platinum kept the same.

Then again some Platinum releases of more recent games where it is the original press with no changes apart from packaging and bundled with DLC vouchers. e.g. recently got Mafia 2 on the PS3 and was disappointed that the extras were DLC codes and not on the disc like it mentioned online. They were used as well. So for that game, it seems only the 360 version is the only complete version due to that the game had its DLC switched off. Also good luck finding the Classics version either new in general or a used copy with both discs intact. Spent months looking for it.

Oh and for Sony stuff in the PAL regions, a spine cover is the same font just whether it has a grey background or a black/white/blue one.