Seems like you almost need two threads here. One for "best auto by a player born after 1975", since there are far fewer of those represented in these threads.
"Vintage" players all seemed to have very legible signatures -- ones where you could actually read each letter and know who signed what, vs today's players who sign a heck of a lot more stuff, and just rattle it off.
Thanks for some great scans tho -- great thread for sure. As for myself, I'll echo either Hasek or Khabibulin as my favourite auto for a "modern player".