(SPOILER)
6. "I'd pick Final Fantasy, that's my favorite."
Doned, FFTA

7. "Ewwww! Something's stuck to my leg!"
Terra, FFVI

8. "Now, if you'll excuse me, I have an appointment with Kefka!"
Locke, FFVI

9. "Huh? What the hell're you sayin'? You're still young, and you give up that easily?"
Sazh, FFXIII

10. "Even if the world becomes your enemy... I'll be your knight, I'll protect you."
Squall, FFVIII

11. "Oh, nothing... My face is always like this."
Vivi, FFIX

12. "If I push this button, they'll fall upside down, and we'll have a SQUASHED TOMATOES!"
Don Corneo, FFVII

13. "Your goody-two-shoes attitude is gettin' old."
Not sure

14. "Kids. Who needs 'em."
uhhhh

15. "I'm Captain Basch fon Rosenburg of Dalmasca!"
Vaan, FFXII

16. "It's not easy being this popular, you know."
Lowell Briggs, FFIX

17. "I'm just a gambler... I just want to be left alone... This world is too chaotic for me. What's worse, I've lost my wings... "
Setzer, FFVI

18. "How 'bout a little Magitek mayhem?"
Sabin, FFVI

19. "Isn't bathing great...? It soothes your heart. How is it, bubby!? Feels good, huh?"
Mukki, FFVII

20. "Great, I have one chicken-wuss and one kid who just entered puberty in my team!"
Seifer, FFVIII

21. "I'll go upside your spikey blonde head and bring you back to normal!"
Barret, FFVII
Could be Cid, but I think it's Barret

22. "Worst birthday ever."
Lightning, FFXIII
Can't even remember anyone else who has a birthday during a FF game

23. "I brought this... on myself... letting hate consume me so... please... avenge... Anna..."
Tellah, FFIV

24. "Wishes can come true, but not if you just wait for miracles. Miracles are things we make for ourselves, here and now."
Vanille, FFXIII

25. "Evanescence... what a sad word..."
No idea