There is no one species that is friendlier. It's like a dog or a cat, some are nicer than others. Chameleons are not that social of creatures, but there are many members including myself (I have a panther) who are able to handle their chameleons without hissing, biting, puffing etc. Some of it has to do with your interaction with your chameleon and the other part of it is really luck of the draw as far as I am concerned. There are members on here who have multiple chameleons and treat and care for them the same, and one will be tolerable of handling and the other will not.