far as I'm concerned (and quite a few other posters on here that have b een around for a while) is mechanized annealing because the dwell time in the flame is precisely controlled, eliminating the human factor.
There are a couple good machines out there but most of us use a Bench Source Annealer.
I would never try annealing by hand or the pie pan/cold water method. Too much variance and it's a fine line between annealed and over annealed, even with Templaq.
Too soft and your gun blows up. Why chance it.
..........but then, it's your gun and your face, not mine.