hm.. depends on what you want! they are all great species. and if you know what your doing and researched, then dont hesitate!
p.s you can get a new cham as long as you promise to put pics up lol
actually that was the feeling i got from reading about them in "stump-tailed chameleons miniature dragons of the rainforest" the only aboreal species i beleive was Brooksia Ebauni. i think thats the spelling. i actually have a pair of specs too, one just laid an egg! and i think she may have...