I was going to post this link in the other "fighting" thread but after the topic switched I didn't bother and besides it was pretty comical. Anyway, this top 20 list is over a year old but most of the standings would probably still hold true today if they made another poll. There's the top 20 list but also some honourable mentions on the very last page if you're interested in trying them out. It's also cool that they do a little review of each game as they go.
Check it out
here.For the lazy peeps here was the break down:
Top 20:
20. Virtua Fighter
19. Street Fighter Alpha 3
18. Garou: Mark of the Wolves
17. Tekken
16. Tekken 3
15. Samurai Shodown II
14. Super Street Fighter II Turbo
13. Capcom vs SNK 2: Mark of the Millennium 2001
12. Guilty Gear XX: The Midnight Carnival
11. Marvel vs Capcom 2: New Age of Heroes
10. Mortal Kombat
9. Virtua Fighter 4: Evolution
8. Tekken 5
7. Mortal Kombat II
6. Street Fighter III: 3rd Strike
5. Soul Calibur
4. Super Smash Bros Melee
3. Killer Instinct
2. Soul Calibur II
1. Street Fighter II - The World Warrior
...and you can see the honorable mentions and misc facts on
this page