I must confess, I use three. Indoors I love the single burner SMEV/Dometic stove/sink combo that I put in the Transit. It is high quality stuff. This isn't really what you asked though I'm thinking.
Outdoors I use a single cheapo butane like Flux if I just need a stove. Love the light weight, small footprint and flame control. Hate the finnicky nature of these when it's really cold out. They do not work nearly as well in the cold in my experience.
My old standby for most camping duty is the basic Coleman grill/stove. The flame control on the stove sucks but the thing does double duty in a fairly small package, a good grill and a useable stove, which gives it high marks for van life.
https://www.coleman.com/camp-propane...000020929.html