I agree that c-ute are great and im not comparing them to other acts singing-wise, just within the group itself. and i agree erika is good. but i can't agree with kanna always being great live, she tends to sqeuak her notes slightly off tune sometimes. maybe it's just me, but that's my opinion. she's still well cute and a great performer.
really i think c-ute should be totally live on TV, especially with sakura chirari which because of the simple dance moves means it's pretty difficult for trained singers to go off note.
I still think maimai is good live!(usually, and she wasn't before c-ute started releasing singles really)