Half-Life 2, its episodes, and Portal are all pretty much the same, regardless of platform (aside from some minor frame rate issues on the PS3).
If you intend to play Team Fortress 2, the compilation's multiplayer component, I strongly suggest you buy the console versions. TF2 on the PC has been butchered by its developers and bears no resemblance to the high-quality, balanced game it once was. The community has become fixated with virtual items and the official forum is clear evidence of that. Few, if any, play the game for enjoyment any more. People just want to trade items for other items.
If you intend to play Team Fortress 2, the compilation's multiplayer component, I strongly suggest you buy the console versions. TF2 on the PC has been butchered by its developers and bears no resemblance to the high-quality, balanced game it once was. The community has become fixated with virtual items and the official forum is clear evidence of that. Few, if any, play the game for enjoyment any more. People just want to trade items for other items.