Here everyone will post the best for each of theses catagories. Feel free to add some yourself. My choices are below them. I will also add character polls as well.
1. Best Story
-FFVII
Worst Story
-FFI
2. Best Gameplay
-either FFXII or FFIX
Worst Gameplay
-FFII
3. Best Characters
- I'm not sure
Worst Characters
-FFXII
4. Best Character
- Cloud or Vivi
Worst Character
-Quina
5. Best Voiceovers
-FFX
Worst Voiceovers
-FFXII
6. Best Fanbase
-FFVII
Worst Fanbase
-FFVII
7. Best Sidequests
- I'm not sure
8. Best FF Character in KH
-Squall (Leon)
Worst FF Character in KH
-Seifer or Selphie
9. Best Overall New Generation (FFVII-XII) games
-FFVII
10. Best Overall Old Generation (FFI-IV) games
-FFI
11. Best Overall FF
-FFVII
Worst Overall FF
-FFII
12. Best Villian
-Sephiroth
Worst Villian
-Kuja
13. Best Soundtrack
-Tough decision
Worst Soundtrack
-FFXII
14. Best Innovation
-FFXII
Worst Innovation
-FFX2
15. Best World
-Gaia and Terra
Worst World
-Ivalice
16. Best Summon
- Bahamut ZERO or Knights of the Round - FFVII
Worst Summon
- Not sure
17. Best Chocobo Design
- FFXII
Worst Chocobo Design
- FFX
18. Best Moogle Design
- FFIX
Worst Moogle Design
- FFXII