tsh. She seems to be the most dedicated to it at least.

Ukyo dedicates her life to it. Whether you like her or not you can't say she isn't a dedicated Cook.
( I think she's Okay, I'm not a real fan but I don't dislike her)

I think Kasumi is..Ukyo is only better at okonomiyaki..I remeber when Ukyo cooked dinner at the Tendo house all of her food looks like okonomiyaki..

Well, Ukyo dedicates her life to being a chef. Kasumi is really good at home cooked meals. This was really hard for me.

both: ukyo and kasumi.
but i think ukyo is especially great at cooking okonomyaki, and kasumi can cook everythink. but kasumi maybe cooks everything just at a normal "level" xD

She cooks different things, but Ukyo's life revolves around it,

I think Kasumi, even though Ukyo's a fantastic chef, I would think the same thing day after day would eventually loose its awe.

I think Both Kasumi and Ukyo, but Ukyo probably specializes in Okonomyaki and Kasumi could probably cook more.

Kasumi's got more variety under her belt. I'm sure Okonomyaki every day would get tiring eventually.

Kasumi-chan has more of a variety in cooking even though as stated before Ukyo-san specializes in just Okonomyaki and having the same thing everyday could get rather tiring so I'll go with Kasumi.

Kasumi has more variety than Ukyo.
Shampoo can cook, but I see her waiting tables mostly and her great grandmother being the cook.
kodachi poisons food.

Kasumi can cook a lot of things but Ukyo cooks only one thinghg