I never really liked Rikku. I suppose I can say the same about the majority of characters who happen to be rather happy-go-lucky or near perpetual in their light hearted nature within the Final Fantasy series. Most of the games have at least one character who fits that role!

In regards to her dress sense, though, I never really paid it much mind. It never really came off as 'slutty' to me. Men and women can wear what they want, really - I'd only class them as being a little, uh...loose if they happened to hit on everything that moved.