Rikku rocked in both of them!
In FFX her part was much better suited, but in X-2 her typical blonde attributes made her funny, plus it gave me something to watch during the game

While I liked the class change system and the more active rpg fights in ffx-2 i'd say it made gameplay in X-2 more enjoyable, but FFX had a much better storyline to it, so i guess they kinda even out. X-2 would've been a zillion times better if you could play as nooj, baralai and gippal