Let me start with that I'm not 100% knowledgeable of Detective Conan, I've skipped a few episodes/chapters. But I have the basic knowledge of characters and plot, so I hope I won't make any errors here.
As the title says, under which detective would you like to work as an assistant or apprentice?
-Kudo Shinichi (back to normal)
Please state your reasons to why, too.
I think I'd rather like to work under Shinichi, since he seems like the calm and collected of those three.
Heiji are rather hot-headed and might make a little fun of/insult you if your deduction/suggestion was wrong... Also, I doubt Kazuha would remain silent and would probably be jealous, even if you were a guy o_O
And Kogoro... Well, he's better than the standard level of deductions... But his huge ego would just make it embarrassing to work for him ^^
What's your choice?