Stoves in order of usage:
1) no stove, I usually don't cook. No pot or stove to carry.
2) if in an approved place, a "cook fire" made from popsicle stick sized twigs. Leaves no trace, no added weight to pack, other than a pot.
3) Esbit or alcohol. I do like the folding esbit stove, or the ti version.
4) Optimus Nova. Served me well, very reliable, good for groups.
5) Svea 123 or 123R....a tad heavy by todays standards but the most reliable stove made. And its fun to watch.

I don't own a butane/propane stove.