SF2 was my first FPS game. When i finished one mission, i was really happy, it was hard... An other thing that make SF2 what it is is the storyboard. Once you've got the disks, you think that Lian could have is antidote. FALSE, they are crypted disks, so you have to go to pharcom museum... And then To meet Gregorov in the volkov park (HELL)... And then Aljir to rescue Gregorov... I just wonder WHEN IT WOULD FINISH !!! When Gregorov gave Gabe the disks I thought that there would be an other incident as "the disks are unreadable, please go to Kazakhstan get the copy of the disks..." Or something like that. NO, we did'nt have to purchase anymore. Then the bio labs, AND the bio labs escape, with 5 M-79 bullet for 6 United1 to kill... And then the end... you're happy, the game is finished, you had hard time but in a few moments it will be over, thanks to Lian, Teresa ans Lawrence, blablabli blablabla... And Teresa die ! When I finished the game i was happy for having finished it, but not so happy...
SF2 was the game that brought me the bigger number of emotions....
BUT...
I don't vote vote SF2 but SFOS... why ?
When i started SFOS my goal was to manage entirely (time + objectives) one mission before doing the other... hard to do, and i didn't manage to do it nonetheless (thanks to all my english teachers for this word) when i had to do the last missions, because i spent lot of time doing the first missions, I had the feeling that there were like my last missions. I had really hard time in Zurich. The music of Tokyo and Myanmar were exotic, so when i heard the music of Zurich I thought that something serious had happened, that the end was near, the final Kombat was close... AND IT WAS ! Its name : Ukraine. The Hell... I loved this mission, hard but the most exciting mission of all SF for me.
SFOS brought me emotions, less than SF2, but it brought some strong : i don't know why but I allways am scary in Minsk and Lorelei. I hate Yemen1, with the f******* stealth to maintain... And I really enjoyed when I became T4...
so :
Storyboard : SF2
graphics : SFOS (I really enjoy be a fwine

)
Music : SFOS
Missions : SF2 but SFOS is close
Overall : SFOS wins, but SF2 is close behind.