MSR XGK II for the last 15 years, I just replaced the pump/valve assembly because it wasn't coming up to pressure as quick as it used to. Its dead reliable and was among the first stoves to have a shaker jet, now a standard feature in liquid fuel stoves. It has a rigid fuel tube, so it won't fit in my pot, but it isn't very large anyway.
I use the smallest bottle available for cooking with and tap my fuel pump's low pressure return when it needs to be topped up.
If you're all about the destination, take a fucking flight. - Frank Turner
Got brap, and twice as much fuel as you. - Akarob