Nes. SMB 1 was my introduction to gaming in 1989. It's probably still my favorite on the system.
Snes. This was the first system that was actually mine. I got SMW for Christmas in 1991. I wasn't keeping up with what was new yet, so I was confused when my grandmother said it was a Nintendo because it looked nothing like the one my dad had. My favorite is probably Terranigma.
Game Gear. Sonic 2 is the only game I had for this system. The only thing I remember about it is never being able to play it for more than 10 minutes without getting dizzy.
SMS. I got this in 1996. My dad told me I was getting a Sega for Christmas. I assumed he meant a genesis because I knew he couldn't afford a Saturn. I didn't know what the SMS was. Double Dragon and The Ninja were my first games. I think I had more, but those are the only 2 I liked. My favorite is probably Phantasy Star.
Atari 2600. I discovered retro gaming in 1998. I didn't like the 64, but I was too much of a Nintendo fan boy to give the Saturn or Playstation a chance. I found a 2600 jr, 2 of all types of controllers, all the hookups, and about a dozen games for around $10 or $15. Donkey Kong was the first thing I played on it. I liked the novelty of seeing Nintendo as a third party developer. My favorite now is probably Berzerk.
GBC. I got this in 1999 or 2000 just so I could play the port of Crystalis. My favorite now is probably Oracle of Seasons.
Genesis. I finally got one of my own in 2004. I bought it off a friend for $10. I remember a few Sonic games, Altered Beast, and Golden Axe were included. My favorite now is probably Phantasy Star 4.
GBA. I got this in 2004. My first original title was Mario Vs Donkey Kong. My favorite now is probably Aria of Sorrow.
PS1. I finally gave it a chance when I found one at a thrift store for $10 in 2006. Final Fantasy 9 was the first thing I played. Symphony of the Night is my favorite.
DS. I got it in 2006 so I could play NSMB. My favorite now is probably Order of Ecclesia.
PS2. I got it in 2009. Lament of Innocence was the first game I played. My favorite is definitely Digital Devil Saga.
Wii. It was given to me in 2009. NSMB Wii is the only thing I play other than vc on it.
PSP. I got it in 2011. My first game was Oath in Felghana. My favorite is Ys Seven.
PS Vita. I got it in 2013. My first games were Dragon's Crown and Retro City Rampage. My favorite is Memories of Celceta. I also preordered a vita tv. I didn't think Ys Chronicles, Oath in Felghana, Seven, or Memories of Celceta could get any more awesome, but they did.
3DS. I got it in 2013. My first games were NES Remix and NSMB 2, although the first thing I actually did with it was download and beat SMS 1. Bravely Default is probably my favorite.
Wii U. I got it in 2014. My first games were Mario 3d World, NSMB U, and Smash. Mario Maker is my favorite, but I think that will change once Star Fox is out.