Advertisement I only have some experience with 7 different sp., but so far, my favorites have been my B. albo and versicolor slings. The albos are such extensive burrowers, more so than my other 3 brachypelma sp., and I love watching them actively dig and tunnel for hours (so far, I've been lucky that they've all burrowed against the acrylic). My versicolor slings are so fun to watch web and wander all over their enclosures, and their feeding response can be really comical. I'd have to say my B. emilia is a close third because she was ALWAYS out of her burrow until she recently sealed it off in premolt. And I have a feeling my G. pulchripes is going to quickly become a favorite. He's been sealed off in his hide since the day after I got him, so I haven't had a chance to "get to know him" yet. Most of my other slings are pet boxes of dirt where pieces of dead crickets and mealworms disappear lol.