Why is Sanji wanted alive only? In One Piece manga chapter 801, all the members of the Straw Hat Crew have gotten new bounties on their heads, being shown on those wanted posters. Do you guys have any ideas as to why Sanji's poster only stated wanted: alive only? What makes him so special that the government wants him alive?
I also thought about this question and I have to agree that at the moment we can only guess what is the reason behind everything with Sanji.

Here are some facts:


Sanji is the only crew member about whom, we know nothing about (his family and his hometown). We just know he is from the North Blue.
Sanji has a very noble behavior and acts like a gentleman, which could be because of his education.
Sanji calls himself "Mr. Prince" in little garden.





Zoro calls him "Prince of idiots" during the fight with Foxy.
Sanji's following quote is also very suspicious:





Another point is that Sanji mentioned he was born in the North Blue and knew the land "Noland". Additionally, he wore a red-white hat two times (also in his zombie form), which have the same color as the buildings in the Lvneel Kingodm.




And these are just a few clues about Sanji. It seems obvious that Sanji's history must be quite interesting. It's possible that Sanji has some secret information which the Marines need, or he is an aristocrat, or maybe even a World Noble whom they want to get back alive.

Additionally, I remembered this video with lots of speculation about Sanji.
It's  very interesting.
Enjoy.