without repeating what others have said...
cabs...
generally get a larger alternator vs open station / no cab, meaning better 12v stuff can be plugged in for longer times with less fear of running battery dead.
get upper front and rear work lights generally
a/c is optional, at bare min heat in the winter (big thing for me)
possibly review mirrors. if mirrors are exterior they will get ripped off if ya in and around trees, make sure you can put something back on after they break off.
when the windows get dirty or sun is just right, there can be some extra glare, making it hard to see FEL (front end loader) bucket and position it is in,
front window easy to clean, it is the side and rear windows that can be a pain to clean on the outside.
if no A/C, and you have windows / doors open when driving, wind can nail you good with exhaust fumes all of a sudden.
if working in the mud in your boots, cabs can be a pain to clean all the mud and like that can get tracked into it.
working in the woods or in tight spaces, cabs can be a pain to get in and out of.
if no A/C, cabs can get hotter than no cab in the summer, (assumption some sort of shade is provided either attached to tractor or a large straw hat is worn.