I didn't use to like it because I associated it with a character in a British soap but now I do like it, especially as it's Shakespearean. In fact, it's the only B name that I truly like - I find B to be depressingly deficient in nice usable names.
I love Bear's suggestion of
Bianca Hilary - I think
Hilary is under-appreciated and it makes an unexpected and charming combo with
Bianca
I also like
Bianca Felicity and
Bianca Miriam
Bianca Marguerite appeals to me but may imply "white daisy" too much!