Is Cait Sith the most hated playable character?

[Carl the Llama]

I like Kimahri as a character, but he's useless in battle.

Kimahri is one of my strongest characters in battle! He is far from useless. If anything, Rikku is fast becoming my most redundant character (currently in the Calm Lands now) because Kimahri can steal and use, Tidus can steal, Wakka can use Mug and Yuna can also steal and use.

Kimahri also knows all four of the -ga spells thanks to Black Magic Spheres, and knows the essential white magic spells. He's very versatile and has respectable, if not stellar, strength.

I think she is referring to his limits, but then, Auron is also pretty redundant when you are OP with limits. Anyone can be pretty amazing if you take them down the right path, I always find it amusing to take Auron down Lulu's path and send her and Yuna along with Tidus building their strength.