Does the Rogue Cronus Magnum III have any real competition in its same price point of $3k?

shtinkydog -- Yes, 20 watts per channel is more than enough. I didn't miss anything about the Rogue. It's a fine amp but just not quite as good as a couple other tube amps I've had and I found the way the bias adjustments were implemented to be sorta fiddly. In comparison, having well-implemented auto-bias on the Raven is nice.

+1 sfar Raven is not boasting. It's not really about watts.

Learn a bit here: https://www.youtube.com/watch?v=4Q7RjCxHVsE&ab_channel=PSAudio
or
https://youtu.be/EG4dKP7gccM

i owned a raven audio blackhawk.  loved the sound, it came stock with nos svet winged c power tubes and a mixture of quality nos small signal tubes which had a big impact on SQ. the current ravens use different power and small signal tubes.  
i sold it and replaced with a rogue cronus magnum ii to increase the impact and scale driving larger box british monitors.  mission accomplished, dynamics and bass were increased noticeably.  judicious small signal tube upgrades brought the SQ close to that of the Ravens.  
i would bet the sound quality today is closer out of the box.  
the ravens would sound more alive with higher efficiency speakers but that was not my case.  

hmmmmmmm….

The answer is never simple and straight forward.