Best 2D fighter

Just wanna know cause ive recently gotten really into 2D fighting games. All I got is Capcom vs SNK 2
Anyone know any other good ones?

Guilty Gear X2 #Reload is probably as god as any 2D fighter ever gets.

Street Fighter Alpha 3
Street Fighter 3 : Third Strike

Guilty Gear X2 sounds really good.Ive seen many clips of it and it looks the bomb.But Even though im gonna get it.Id like to get a Street fighter as well so I can get a better understanding of the series

MORTAL KOMBAT
dun dun dun dena
dun dun dun dena
MORTAL KOMBAT
boom boom boom boom
*dance dance dance*

Streets of Rage 2 is the best game ever made, come to think of it S.O.R 2 probably qualifies more under the genre "sidescrolling".

Yeah, the Streets of Rage games are mostly considered 'beat-'em-ups'.

I haven't played any Street Fighter game beyond the latest variations of SFII, and I liked whatever Guilty Gear game it was that I played, so that has to get my vote. I don't play 2D fighters much these games, but I really should get back into 'em.

Marvel vs Capcom II. The game that redefined button mashing.

Clay Fighter 63 and a third....

But seriously, I'd say Marvel vs. Capcom or Street Fighter Alpha

I hated the Marvel Crossover games. People only liked them because they had Wolverine in them.

Street Fighter II.
But then the only other 2D fighter I've ever played is Mortal Kombat, so that's hardly saying much. :D

MK is a crappy fighter anyway. It had a good set of characters but crappy combat. They should have made it have a freeformed combat engine like Guilty Gear or Street Fighter.

Street Fighter Alpha 3 gets my vote. I haven't played it in a long time but I remember liking it.

Slightly off topic here but out of interest, what's the latest game in the Street Fighter series and what platforms are it available for?

SF3, SFA3, MVC2, CVS2, and KoF '03...