Mostly agree with that. The Arya and HD800S are different headphones to the LCD-3, as they seem to mostly focus on staging with a brighter signature (the Clear as well I think, though in my experience with Focal headphones they usually stage quite small). In fact, I purchased an HD800S specifically to get something complete different to my Audezes - and they surely are!Depends what you are looking for.
If you want elementar deep bass, clear highs, slightly recessed mids, and not afraid of the weight, then yes.
If you want unprecedented stage, go for HD800S. Bass missing.
In the Arya as well.
I cannot say anything about the MG.
If you add up a little more budget you might get a used Meze Empyrean, which is my favourite.
Go grab an LCD-3 if you really want that lush, romantic and full sound, with a relaxed treble. Otherwise, the 'newer' models like the LCD-X and LCD-XC offer better value for money. Despite the price difference, I can't really say that my 2015 LCD-XC is at a lower level than my 2019 LCD-3 technically, though I do still prefer the LCD-3.