Bought the GTA complete pack from Steam. Going to have a ton of fun this weekend. It came with GTA 1, 2, 3 and 4 along with Vice City, San Andreas and Episodes from Liberty City.
GTA 1 is great, my favorite between GTA 1-2-3, but it's just because it was my first GTA game, I am sure technically and otherwise the others are improvements.
GTA4 is highly underrated by fans, I mean critics overrated it giving it master scores, and people underrate it saying it sucks. The reality is, it's a pretty solid game with a lot of entertainment and fun, but not an amazing, master game.