Who is the best submission wrestler out of these guys, the undertaker,chris benoit,or cm punk in there prime?

Benoit and its not even close, his whole moveset was set up to work around the midsection and upper neck area to set up both of his submission finishers the sharpshooter and crossface. It was all about submitting his opponent for him and nothing else, this really isn't even close since neither cm punk or taker are submission wrestlers at all. Just because taker has the hell's gate doesn't make him a submission wrestler kinda like how just because cena has the stfu still doesn't make him a real submission wrestler. And cm punk stopped using the anaconda vice a long time ago so currently cm punk doesn't even submit people.