Yeah, you're right. But it probably depends a lot on what one's used to. I've always watched CCS in Japanese and that's what I love. On the other hand, I'm used to the YGO English cast and it's hard to get used to the Japanese voice actors. I like much of the Japanese plot line better, but I prefer the English voices. So I'm very excited for the bilingual YGO DVD's coming out this fall in which the dub voice actors will re-record the episodes to follow the Japanese script! ^__^
Back to CCS, I do not like Tomoyo's dub voice. o.o I do like Li's, though I'm not so sure about Sakura's or Kero's.