If I had to choose boas which i have dealt with many kinds i would go hands down a HOG ISLAND BOA (HOGG ILSE BOA). My hog has beautiful oranges and is super light and has the best appetite out of all my snakes has never refused a meal, and is also probably my most tame snake I have as well. I have had Normal RTBs and love them as well and I plan on expanding my RTB collection but if I had to choose just one boa the HOG takes my pick. They dont get to big have great appetites and the right amount of handling are sweet hearts.