I went with Other because it really depends. During normal work hours I use my rMBP + ATD due to workflow/productivity. I am constantly switching between running apps, so while it's technically possible to do everything on my iPad it would take longer.
With that said, when I'm not working (evenings, weekends), I really don't touch my laptop anymore. My iPad goes where I go, inside or outside the house, and if I do need to jump online to do some quick work I'll do it from my iPad.
So, work use = laptop. Personal use = iPad.