Very informative posts and I've read and learned a lot so far.
As a new student who has only completed 2 of the OW dives I would like to give my honest opinion of PADI so far. I went with PADI simply because of the few divers I knew all were PADI certified. Whenever I travel and see dive shops they all support PADI. I honestly wasn't even aware of other organizations until joining here. I do see a serious problem with the material and training. The books seem like they are written for high school kids and the question and answer portion are practically useless. The written test was a joke and most of the class just guessed and the instructor gave us the info because they shop was soo back logged they didn't want to slow down the PADI cert machine. I probably wouldn't have invested any money into PADI knowing what I do now and after completing the written training and my first 2 dives. For starters I picked up a cheap groupon from a shop and because hundreds also did I couldn't get into a class for 3 months after I purchased my Groupon. My class section was soo full we had standing room only and we went through all the material so fast I honestly can't remember any of it. The pool session was just as bad. A few other students were not very physically fit and took a LONG time to do the basic swimming test and tread water test. I then realized that everyone would get certified no matter what and that the training was just an informal way of introducing you to scuba. Out of the training everyone passed although a few classmates couldn't even stay in the deep end without panicking to the point they had to surface after a few minutes. I thought wow a person can't stay at the bottom for 3 minutes without panicking so why would they pass her and sign her off?
My first 2 dives where fun, but I honestly thought it would be a lot more controlled and didn't expect to get down to 65' and swim around my first dive ever. I'm good in the water, but I honestly will admit I was way over my head and got worried after I surfaced because if I did have any type of problem I was pretty deep.
I'm going to finish out my PADI only because I've already pre-paid and committed, but i'm also going to find a good organization and start from scratch with them so I will have the confidence and safety that I really need before I start doing OW dives on my own.