Having flown many of the side by side variants I find the Magni very cosy inside (if you like rubbing shoulders with your pax it’s fine) In the M24 the seats are slightly staggered to enable a reasonable comfort.
The Cavalon is nice but it does not offer the finest view …The polish machines offer the finest view and the largest cabin ..the new ones come with auto pilot ..
The polish machines are well constructed and IMO are the finest out there, Magni does still seem to command a better resale value
Again one sise does not fit all and I suggest you fly all if you can, the other consideration is maintenance and ease of maintenance.
The Magni is fiddly the Cavalon is just frustration ( wait to you need to service the pre rotator mechanism) …the polish machines are streets ahead when it comes to pre flight inspection and routine maintenance.
Here are some pics of the older xenon ( the new ones are off the charts in comparison) I demonstrate how much cabin room there is with guys that are over 110kg ….you won’t find that in the others with comfort.