There isn't one. Many instructors teach for several agencies and most students take programs from several different ones along the way. I took normoxic trimix three times because I kept learning different ways to apply the same set of concepts through different lenses. Some agencies emphasize different things than others. Some have great programs and instructors and terrible literature. Others have great literature and terrible programs and instructors. So far as I'm concerned none have both (on a reliable basis - you may get lucky and find a great instructor AND a great program... but you're better off doing deliberate research to ensure it).
After my intro tech training (and before I did any further tech training) I acquired and read most of the course manuals for the major agencies to see if there was something in there that resonated for me. In addition to giving me a good basis of knowledge to come to class with, it generated a lot of questions about how differently the various viewpoints presented things. There are even some stark contradictions between the agencies that generated very helpful discussions with my eventual instructors.
I think one of the things about tech diver training is that it's even more non-linear than recreational diver training (should be). You're not "done" when you get your advanced trimix card. You're never done. You might even go back and re-take another course because someone has a new idea that you're unfamiliar with.
Tech diving is a lifestyle decision. It's something you apply your mind to on a far more dedicated basis than anything in the recreational diving world. Application of superlatives are foolish. No agency has used their magic to eliminate diver injury and death. You're never going to know enough, so why bother declaring one the "best"?
After my intro tech training (and before I did any further tech training) I acquired and read most of the course manuals for the major agencies to see if there was something in there that resonated for me. In addition to giving me a good basis of knowledge to come to class with, it generated a lot of questions about how differently the various viewpoints presented things. There are even some stark contradictions between the agencies that generated very helpful discussions with my eventual instructors.
I think one of the things about tech diver training is that it's even more non-linear than recreational diver training (should be). You're not "done" when you get your advanced trimix card. You're never done. You might even go back and re-take another course because someone has a new idea that you're unfamiliar with.
Tech diving is a lifestyle decision. It's something you apply your mind to on a far more dedicated basis than anything in the recreational diving world. Application of superlatives are foolish. No agency has used their magic to eliminate diver injury and death. You're never going to know enough, so why bother declaring one the "best"?