As I said, many gaming franchises aren't in the poll, but it's impossible to think about all of them. I still think 5 votes aren't enough, because I'll have the feeling I'm probably missing some of my favourite ones, but let's see...
Two of my votes are very clear: RDR and GTA. Red Dead Redemption 1 is my favourite game, and probably RDR1 and RDR2 together make one of the best well-written stories. Most of the people prefer RDR2 (and they have reasons to say so, of course), but RDR1 has that
something which makes it so special. I don't know what it is, because it's worse than RDR2 in every single aspect, but this game has
something that RDR2 doesn't have, and I still don't understand it. GTA is also another franchise that was extremely entertaining for me. That trilogy from the 2000s was simply remarkable, and with mods in PC is even better. My favourite one is GTA 4. It's probably the weirdest of them, with those grey/dark colours representing a sad New York city, and it's probably the deepest of them all. Also, one of the things I really like about this game is how technical it is, with the Euphoria physics and how much you can interact with the environment. This may be a very unpopular opinion, but I think game developers should focus more on how can you interact with everything than on graphics.
I have to include Resident Evil in this "top 5" too. RE5 and RE6 were a bit weird as they tried to copy RE4's formula, but I think these games are great. My favourite ones are RE4 and Resident Evil: Code Veronica. Yeah, I know, they are very different, but they don't necessarily have to follow the same formula

.
I would have voted for Uncharted or Need For Speed, but as these options would be kinda obvious I've decided to vote for Ratchet & Clank. I don't think it's necessary to describe this gaming franchise, I'll simply say I could still play all of the PS3 games if I were blind
My final vote goes for Max Payne. Matrix is one of my favourite movies, and what was the most surprising formula used in these movies? Exactly,
bullet time. Max Payne 1 and 2 represent quite well this formula, in consonance with the dramatic story of Max Payne looking for answers. Max Payne 3 doesn't have this kind of dramatic story, but it's probably one of the best third-person shooter games ever made. The bullet time was considerably improved and in this game you're going to experience the most satisfying shootings.