Comparison of GRS surgeons (Vaginoplasty)

There are a number of techniques available, however most surgeons perform a highly-modified variant of the original penile skin inversion technique, which can be done in a single stage with 4-6 hours spent under the knife. If you started to transition early during male puberty, or your junk is very small even when erect, the sigmoid-colon technique may be a better option, and can also be done a single stage. See vaginoplasty for a deep discussion of techniques. Techniques outside of these two are either very old (e.g. two-stage surgery) or very new (e.g. cheek graft tissue.)

Dr. Brassard
See Excellent FAQ on Dr. Brassard's surgical technique. Apparently Dr. Brassard requires some patients to sign a funky non-disclosure agreement (NDA) requiring patients to shy from publicity (presumably not post pics of your new hardware, talk publicly etc.) Here's a reddit thread about the NDA and a discussion of Brassard's results. For what it's worth, many of Brassard's patients seem extremely happy.

Dr. Alter
Dr. Alter's practice is apparently hilariously expensive, with $500 for an initial consultation and up to $75,000 for GRS! That's far more expensive than any of the other surgeons. Combined with his almost total lack of web presence for GRS (Note to Mabel: check Susan's Place for this guy) there are major red flags here.