Hiruzen Sarutobi.
Of cause, because his students ended up as three of the greatest shinobi of their time (Sanin). Now that's a good accomplishment to add to his résumé.

Kakashi.

I would like to prank him.

Kabuto or Orochimaru

Because they do extensive research. I'm interested.
I may most probably end up being a human subject (no one escapes Orochimaru T.T) but well, if it makes me powerful and he guarantees that I won't be killed (as if xD), then I'm fine with it.

I just realized that he is the only one who had all three students receive a title/recognition. :D

lol the type of teacher who would prank you first.

First lesson: Prank wars ;P

I would probably be as mad as Orochimaru if I become one of his students. I'd be one mad scientist, y'know?
But, I would beat him to it by using him first as a subject, before he gets to me xD

But, I would beat him to it by using him first as a subject, before he gets to me xD

Orochimaru's experienced and pretty merciless ... and old lol. Doubt you can outdo him. He doesn't mind killing humans either ... dangerous, man. Oh, and he ain't a human ... you don't know what you're gonna expect if you use him as a subject, he might just come up with this unexpected kinjutsu and then BAM. You dead Dx

Hmm, well if i may, i choose Tsunade; for obvious reason .. what reason you ask? 1st thing that popped in your mind when you see her, yep, thats the one; oh no you say ..... it is, believe it.

*round of applause* I get why ya picked her then. Such motivation.

I'd probably pick Anko. Why? Let me cancel out a few teachers before explaining.

Jiraiya would be nice and yes I'd enjoy being a pervert with him but first of all, I'm a chick so that's bad, second, he's too focused on his books thus unable to teach properly.
Orochimaru is a no go for me since as much as I love Science, I'd hate the odds of being experimented on and thrown away after.
Tsunade is not for me since I lack the fondness for Medical Jutsu and I can't see myself having a good enough chakra control for me to grow in her domain.
Kakashi in the show focused too much on Sasuke and was quite late in meetings. I'd prefer a teacher who puts effort into teaching me and not acting as if it was a pasttime or a forced job.
Asuma has a laziness different from Kakashi. Out of the Rookie 9, his team didn't improve much in between graduation and chunnin exams so no go.
Kurenai might have been great for me, I do enjoy manipulations and illusions, but I'd only be taught Genjutsu and basics with her.
Gai would have made me motivated and he is my second choice of teacher, especially with how fun it might be but I'm not planning on relying on Taijutsu. Tenten didn't excel with Gai and I'd probably not excel with him either.
Any of the Hokages were immediately out of my thoughts since being taught by them would have meant being placed in the shadows of their students and I'd rather not be in the shadow of the Sannins or Sandaime.

So I explored those who aren't teachers in the show, my desires for a teacher was that he/she had an excellent repertoire of Ninjutsu, a great grasp of Taijutsu (mastery of a style), mastery of a weapon (sword, bow, etc.), a list of accomplishments, and an ability to motivate their student. In the end, Anko had all of those, with Orochimaru as her sensei she has a great repertoire of ninjutsu, snake style might be good for my body type, though she doesn't know how to wield a sword her kunai skills are unmatched, she's infamous in ANBU, and her snakes and * are a great motivator.

I could say Asuma, but then I wouldn't stop staring at him.

Kakashi would be my choice since he's mastered lots of jutsu and even if he's late, he still seems reliable.

Madara Uchiha, he single handedly destroyed the Hidden Leaf Village, he's arguably the strongest ninja ever because one on one he's unstoppable and it took the shinobi world to even put up a fight to beat Madara, he has the power on mind control, and lifting planets. He's the ultimate Uchiha.

i would have madara or minato

I want to say Hidan just out of the small possibility of what it would be like if he grew out of being a psychopathic whiny brat and became dedicated to the ways of Jashin in a more assassin, bounty hunter like capacity.

I think that.... Shisui could have been a decent teacher, if he stayed alive...

But if I can have a teacher in any ninja from Narutoverse, I go with Hiruko. A bit illegal stuff, but the results are amazing. I wonder how many people actually know Hiruko... xD

Any of the old summons, like Fukusaku/Shima/SnakeSage/Etc. Sage mode would be very nice.

Sasori

I think using puppets would be pretty cool especially the human ones. I'll become the ultimate artist.

why (for both of your picks)? :)