For sure the Grey Tree Frog! They are just so full of personality and mine have proven to be affectionate as well! They love to sit on my shoulder while I watch TV. They will cuddle up under my chin or sit happily on my arm for hours! They always let me know when they want attention. They will watch me walk by the tank very attentively and if I still don't get them out, they will hop to the glass and sit there waiting for me to open it so they can jump to my shoulder, lol. Dose anyone else have a frog with a huge personality? I never knew they could be like that! These are my babies, you can see they are already trying to get to me and I had just opened the doors, lol. It is always the two boys, Kermit and Buddy, that want the most attention. Lilly can take it or leave it.