Personally I still haven't yet come across an alcohol burner that outperforms the Trangia burner in terms of overall performance, usability and flexibility and cost. The ability for the Trangia to store residue fuel internally is a major plus.
There's a lot to be said for the Trangia burner. As one writer put it: "there are two types of alcohol stoves. The Trangia -- and everything else."
The "open jet" style of the Trangia burner is definitely my favorite, and I've experimented with quite a few styles. Easy to fill, easy to light, and effective.
HJ