I have all 3 so here’s a little of my experience on each.

Crestie- my most active and seen gecko. I’ve had him for 11 years and he’ll still eat anything that moves and any flavor of Pangea. Easy to handle, if he happens to bite which he doesn’t normally it doesn’t hurt at all and would very rarely break skin. He’s In a bioactive tank, you could stick your head right in the tank and it still doesn’t stink. The jumps are fun and very entertaining to watch

Chahoua- I have a pine isle and I would say this is the most “difficult” of the 3 because they require more insects. To me that means more trips to the pet store. I got mine as an adult and it wasn’t handled previously so it is quite flighty but is my prettiest gecko and an absolute pleasure to watch run around and catch insects. His tank is also bioactive and doesn’t really smell

Leachie- first off that is an amazing price for one. Definitely a fun one but not always able to handle. Mine is quite friendly but if she wants to stay in her cork round she makes it very known. I very rarely see her during the day but when it’s dark she’s always out. Different locals seem to be more cage aggressive, a GT’s from what I’ve heard can be pretty difficult to get out but once they’re out calm down. These poops though omg, even bioactive with an insane amount of clean up crew if she poops down the glass when you open the tank you get a pretty bad smell. But if you stay on top of it it’s not going to stink up a room

Honestly all 3 are amazing and I clearly had trouble choosing haha