I want a calm, mostly non-nippy (especially as a baby), can hang with on the couch type of snake.
you just basically described a ball python right there. I've had my BP for close to 2 years now and got him while he was borderline baby/juvenile (89g) And he was already well started. And i can tell as far as temperent goes, i would say the chances of my BP striking or biting me is probably the same as winning the POWERBALL lottery. Hes calm as can be, and once he is out of his enclosure i can have him on my lap for hours.

Now the bad. My BP was a rat/mouse guzzler when i first got him but once he reached 800, its gone down hill. Its fustrating, but as long as you have a digital scale and his weight is ok, then youll be alright. But not to lie to you even knowing his weight is find, it still a little fustrating seen your guy not eat for a month or 2 or even 3.

but what AaronAshley said is true, all BP's are different, because before the BP i have now, i have owned 2 normals, and they both ate anything i put infront of them and never missed a meal, not even in winter.