Well…
I am biased, due to the MD being the center of my studio, but it’s MD all the way. I might add a precontextual note: I dont use a DAW to do anything other than record. The MD is for all intents and purposes, my powerhouse sequencer. Right now I have it controlling 4 synths, 3 effects and 2 external drum mahcines. Due to its reach, it can also control modular(think event sequencing) and do things normally only Daws can do. Well kind of.
That being said, since your DAW savvy and not against using one, I think the OT might be a better fit for what you want to get done, while the MD would be a get at a later time.
I actually dont plan on getting the rythm, as I think it doesnt seem like an out right “must have.” I need to see something cool other than a better version of the tempest.