Dan Carlin has a great radio voice, and is an entertaining presenter. Hardcore history is really only okay on the history front though. Plus they are relatively shallow with how short they are.
I think Carlin himself would be the first to admit that, even does so in the intro to many episodes. I think he already suffers from the length of some of his series.
Revolutions is my go-to. I also listened to History of Rome from Duncan. And because of this History of Byzantium is on my to check out list as well. I will try the others you mentioned. I'm very eager to find others as in depth as revolutions. Thanks!