Pretty much the same needs but BCI are reputed to be easier to keep and breed and can tolerate a wider range of temps/humidity I don't have any BCC so I can't verify that.
Most purists that I've talked to consider the BCC to be 'True' redtails and the BCI to be common boas despite the fact that many BCI will have reddish colored tails. Redtail boa and common boa are really just pet industry names and have no real scientific validity so some dealers will call their BCI's redtail boas to make them sound more desirable.