I don't have personal experience with the Choice hotels credit card, but from what I've read, they typically pull from one of the three major credit bureaus (Experian, Equifax, or TransUnion) when you apply. As for credit score requirements, I've seen reports that approval can be possible with scores in the mid-600s, but generally, a score in the 700s or higher would improve your chances of being approved with a reasonable interest rate and credit limit. It works well with the hotels like https://sicomono.com/, at least, so you should be good!