I don't use either of those for my BP's, so I can't give you a full answer. I use ecoearth for my Kingsnake and my Sudan Plated, and it's pretty good. Holds moisture well and won't mold. Will have to watch that it doesn't get TOO wet though.

Most people on here will recommend either aspen chips or newspaper/paper towels. I use Carefresh and I love it. There's lots of options!