Well my story of my favorite game ever started way back in 2001. I was doing some research in Amsterdam for my master in some institute and was pretty bored and I checked the internet just to kill some time.
Then I accidently saw a picture of the upcoming Gran Turismo III on the PS2. Not being a console gamer since the Sega Genesis I was pretty shocked by the graphics to say the least and they mentioned 60fps, so yeah...
I bought a PS2(the glorious red GTIII edition for an amazing 999 dutch guilders, like 450 euro's) a couple of weeks later. I was so happy with it and till today I still think GTIII is the best in the series.
Then there was a girl around at my study that I really liked (unfortunately she only thought of me as a brother LOL) and she always talked about her love for the Final Fantasy series, especialy FFVII and FFVIII. So in a failed attempt to gather some attention from her I bought FFX, even though I had not played a JRPG since my MSX days, the great Xanadu.
Well I must say, FFX is since then, my favorite game of all-time. I was in awe: the music (which I really digged as a prog-rock listener), the story, the graphics, the landscapes, the awesome movies (the Sending), the gorgeous pre-rendered backgrounds, the wedding, the Farplane, Lulu, Auron's speech before the Yunalesca battle, Sin, the travelling historian, Seymour which I didn't trust from the start, the flashbacks of Tidus'father. I even digged the infamous hahaha-scene and the Trials. People always say that a FF is your favorite FF because it was the first FF you've played but I really think that FFX would be my favorite FF even if I would play it later. FFVIII came close though! But FFX is my favorite, having played it multiple times and I look forward to play it again on my Vita if those guys at Square-Enix won't fuck it up!