You should, the requirements are that you beat gouken with the arcade mode of akuma finished. So if you use akuma the first time and get 2 perfects and 3 ultra finishes, you'll end up fighting gouken in the end. BUT since gouken comes after seth it still counts as akuma finishing his arcade mode.
What are the actual requirements for Akuma, does anyone know? I know you don't have to beat the game having beaten it with all the other unlockable characters(everywhere says you do, but I didn't beat the game with Gen until I couldn't open up Gouken) and the run through I got him I had one perfect and one ultra- didn't work with four perfects and four ultras.
If this game is for hte PS3 and 360, why is there all this talk of special joysticks?
Fighters feel more natural for fans of the genre with a stick button combo as close to the arcade as possible. Given that SF set the standard for exactly what the layout was supposed to look like, and a whole bunch of us cut our teeth on SFII or one of the sub titles, makes a lot of sense that people would rather play it with the ideal setup. I'm using Dual shock/six axxis pads and they aren't bad as long as you stick with the D-Pad, but the game would certainly feel far more natural to me if I had a proper joystick to play with. It's akin to racing games and wheels, it just feels better.
I want to know what people that are not fans think of the game think (the ones that bought it).
I think you are going to find that hard to get an honest answer. If you like 2D fighting games, odds are as close to certain as you are going to get that you are going to love this game, and are almost certainly already a fan. It is the pinnacle of its' type of game. If you do not like 2D fighting games, nothing here is going to change your mind.