Not an expert at all, but I'd say this depends a lot on a.) The assumption that you're planning to compete in a weight class event. b.) Where you sit 'naturally' relative to those classes and how those weigh-ins work (i.e. day of vs. day before).
For instance, I am comfortable at about 225-230# (I'm 6'4"). BJJ weight classes here are over 200# in a gi with a same day weigh-in. In my mind (and my coach's) it doesn't make much sense for me to try to get sub 200# for a same day match even though I'd be a monster at that weight while I'm a smallish HW.
Conversely, MMA here has a 205# with no gi and a day before weigh-in. That's much more feasible and probably what I'll do if/when I go in for an MMA fight.
Lastly, I train mostly to come out on top in real world situations where there are no weight classes so while I don't want to be weighed down, have no interest in doing much hard cutting. So I'd say it also depends on your focus.
I'm sure that's clear as mud...