I'm brand new around here. Still, I think that this is a highly personal choice. All of the selections are hearty, easy care, starter frogs based on what I have read.
The real questions is, which one speaks to YOUR soul ? Which one makes you smile every time you see them ? Based on your avatar, it seems thaat you have already made your choice ! lol
For me it's Leucs. Easy to find. Reasonably priced. Choices within i.e. Guyana and Fine Spotted.
I have heard more than one veteran here say that with only beginners research, a serious dose of common sense, and a willingness to provide the best possible environment and care, Leucs are THE bomb-proof dart.