I’ve sadly never had the pleasure of listening to either of those pairs. I didn’t even know the HPH-MT8 was a thing until you mentioned them…but they look pretty interesting!
The Beyer’s strengths are comfort, build, and sound quality. The other two models you mentioned both have removable cables, which the Beyer does not have, and both seem like they’d be much more friendly to portable use.
I’ve used DT770’s on-the-go, but I’m a crazy person. :)
Sorry I can’t be of more help! Thanks for telling me about the Yamaha’s, I’ll have to add those to my “Check out in the future” list!