These are my top ten most enjoyed video games over the course of my life. It's not the what I think the top ten best games are or the top 10 games that I would like to be stuck on a desert island with. They are the top 10 games that I have played the most and given me the most enjoyment. They are not ranked.
Ninja Gaiden Black (Xbox)
I played this game years after it first came out (a year after Xbox 360 came out actually). It was mind blowingly good. I don't know how to describe it other than saying when you get good, you really feel like a ninja... jumping around and doing crazy ass moves and stuff. The gameplay (combat and movement) is just amazing.
Soulcalibur (Dreamcast)
My friends and I logged thousands of hours playing this in college. We would fill our room with people and round robin all day and night. First 3D fighting game with near perfect hit detection, amazing graphics, deep and fulfilling combat system... it was perfection.
Quake 2 (PC)
Another game which I logged a ridiculous amount of hours with. First networked FPS with near perfect hit detection. This is the game that got me serious about modern first person shooters.
Super Metroid (SNES)
Great swan song for classic side scrollers. I think this game still holds up today.
Resident Evil 4 (Gamecube)
This game is a masterpiece. Everything about it is fantastic: graphics, level design, character design, pacing, gameplay, sound, atmosphere.
Final Fantasy IV / II (SNES)
First game that really introduced me to video games as a medium for storytelling. It's like reading a book... you get attached to characters and there is a level of emotional investment. It's sad when it's over... like your adventure with close friends has come to an end.
Final Fantasy VI / III (SNES)
Like Final Fantasy IV / II except bigger and better. I'd say this is the greatest sprite based RPG ever.
Final Fantasy VII (Playstation)
Like Final Fantasy VI / III except even bigger. Spent upwards of 70 hours fully exploring this game. So much to do, so much to see.
Street Fighter 2 (arcade/SNES)
What can you say about the game that started it all?
Final Fantasy XI (PC)
I had to list at least one MMORPG. This was my favorite. It had a unique and fun combat system (chaining special and magic attacks with other players). MMOs are weird. It's so weird having a second life online complete with friends, a job, etc...