Well... I'd say Tidus and Yuna (X version) are good together, Tidus and Yuna (X-2 version) arent. But Tidus and Rikku wouldn't go good their personalities are a lot a like, they're very outgoing... and they'd make a hot couple... cause they are both really hot... lol

I just like Gippal and Rikku better... too bad we'll never know.