What chessplayer, living or dead, would you like to have as your chess teacher?

I would like to learn with Robert James Fischer. My second option would be Emanuel Lasker. 

Although not my option, I believe Anatoly Karpov have a very good personality, and so, he would be a nice chess teacher as well.

Nezhmetdinov, Tal's trainer and second for the Botvinnik match and a fantastic player and attacker in his own right. Some of his games are pure masterpieces and among my favourites ever.

Tal did in fact train at least one future top class player, Alexei Shirov.

Exactly.

Saw an interview with Svidler on Youtube a few days ago. Someone asked him what were the best training methods if you're rated 1800. He apologized and said he couldn't remember being rated 1800. He said just read books and play a lot of games.

It was kind of funny. Another person asked what's the difference between FM, IM, GM. He said it's mainly experience, and continued to talk about it this way as if only new players are rated as low as FM, and IMs have been playing a little longer, and GMs a few years more than that. He said if you can stay in the top 10 then you're a complete chess player.

It was all very candid and nice, but it's plain to see some GMs can't relate to such low levels.

Probably none of the champions, really.

I really don't think Capablanca, Fischer, etc. could impart their skill to a student.  Many people who have natural talent from an early age are awful teachers, regardless of field.

Of course, if my real goal was to hang out with someone interesting...well, Humphrey Bogart was an Expert player 

Euwe

Shirov was inspired by Tal, but did not learn directly from him.

Nezhmetdinov was a training partner with Tal, but not really a trainer per se. Tal played some training games with Nezhmetdinov before his match with Botvinnik.

Tal's main trainer was Koblentz.

Karpov.

Shipov! He makes instruction very entertaining.

If Fischer is judged by just his chess play, no doubt...Bobby Fischer. living or dead.

How could he be one of the best and all he .... almost always played 1.e4 as White. He ran into an early wall as it starts to become easier to prepare for an opponent if you know what they are going to play in a game. Then add technology became a factor.