Say YES to humor!
Say NO to Robin!
Sure he does. being a sannin isn't about being "evil" or not. It's about skills.
Errr... YES he deserve the title, no matter what...
yes, he deserves to be one of the sannins. hes smart in some ways. i found out oro is an awesome character because hes related to all the big stories in naruto. part of akatsuki (that was when we are trying to know akatsuki through manga cause its new meanwhile hes already be part of it, but then he left the organization) , one of the sannins (involve in wars), had his own cursed seal which is cool, own hidden village(not to say that he made it himself), once an elite shinobi of konoha, have his own army(the 5 sound ninja, kimimaro, hebi and etc. hes a well known person in naruto, that what makes him more interesting than any of jiraiya or tsunade. i fancy jiraiya though. huhu
Kishi and his Naruto is just way too cool.