I think most would agree that there are lots of factors to consider in deciding what kind of stove to bring on tour. I choose one that burns unleaded gas as I've said. The reason is the easy availability of fuel. For me that trumps the facts that unleaded burns dirty (smelly and black soot), sputters, and doesn't simmer especially well. If availability wasn't an issue I'd prefer butane. My Primus weighs almost nothing, the cannisters hold a lot of fuel and don't weigh too much, there's no pumping, and it simmers beautifully.
I haven't tried alcohol.