I think mine will soon become Far Cry 3. The main antagonist, Vaas, has heavily influenced me on that decision. I think that the game has so many aspects which are amazing, and the campaign is just brilliant. The characters, storyline, quotes, general gameplay; it's just all so good!
In general, looking at the new releases and the pre-order charts it looks like it could be a good 2013 in terms of gaming.
I enjoy everything, I have yet to actually play a game which I genuinely dislike.
In terms of a placing certain games above others; Pokèmon Green, Final Fantasy IX & Chrono Trigger have always held special places in my heart (mostly because I played them while being bed-ridden for a rather long time).
Pokemon Black and White 2 ( I play both of them )
Final Fantasy I for the PSP
Sonic The Hedgehog
Super Mario 64
Final Fantasy I
I haven't played Sonic the Hedgehog for a while, but I have it on my Nintendo Wii from the Wii Shop Channel.
I am currently going through a red mage solo run on the Final Fantasy I, and I got all the chaos emerald and beat the final boss in Sonic Heroes.
I did entered the Hall of Fame in Pokemon White 2 a few days after I got the game.
Super Mario 64 was my first game I had for my Nintendo 64. I still have all of the games listed too, but some of them I didn't played for a while.
Haha, seriously though, it's Mother 3. To quote myself: "The characters, the plot and their development; the universe, the genre, the charm, the gameplay, the lasting appeal, and the ending— I could go on for years and even after all that time, this will still probably be high up on my best video games lists, if not still the best. I just love it so much. <3 You have to go play it to know what I mean."
I might as well mention the other games I consider my favorites! In decreasing affection:
Pokémon Gold and Silver (GBC), Kingdom Hearts (PS2), The Sims (PC), Sonic the Hedgehog 2 (Sega Genesis), Harvest Moon: Friends of Mineral Town (GBA), Phoenix Wright: Ace Attorney (DS), Pokémon Mystery Dungeon: Explorers of Time (DS), Mario & Luigi: Superstar Saga (GBA), Paper Mario (N64), Final Fantasy VI (SNES), The World Ends With You (DS), Final Fantasy X (PS2), Super Smash Bros. Brawl (Wii) and Final Fantasy VII (PSX)
Okay that is a long list. Whoa. But yeah, I'm sort of a retro gamer so that's probably why I have vastly different favorite games compared to most people.