This is a ranking of every Master I feel I've seen/heard enough of to rank. I intend to make a list including the James Dreyfus and Alex Macqueen Masters at some point. What are you thoughts ? How would you rank the Masters? Yes I'm aware several separate entries on the list may be the same incarnation.
Roger Delgado (I almost feel like it's disappointing to put the first version of something at the top of a ranking list but while I honestly enjoy several of the Masters directly below Delgado about as much as I enjoy him it was this performance that laid the groundwork for everything to come after.)
Michelle Gomez
Derek Jacobi (I've been listening to his audios lately so that might be creating positive bias)
Sacha Dhawan (He steals most scenes)
John Simm
Anthony Ainley (If he was as good as he is in Survival in every story he'd be closer to the top)
Mark Gatiss (I've only listened to his first appearance so far)
Eric Roberts
Pratt/Beevers Crispy Master (I imagine the Beevers Master will likely move up on this list once I listen to more of his Big Finish stuff.)