While all agency certifications are acceptable for diving world wide, working as an instructor for different agencies might prove problematic. In the Instructor to Instructor forum on ScubaBoard, we recently had a thread started by someone who had recently gotten his instructor certification through a pretty obscure agency, and he wondered why none of the local shops would hire him. Well, duh, if you are certified to teach for an agency that is not offered in any of the shops, you had better be in a position to act independently.
On another point, you wrote, "Can't stand padi. Put another dollar in, pay a lot dive immediately.... All accurate. I feel like they are a money hungry scam. I'd like to be able to certify friends or whoever,...." On that basis, I think you need to get certified by one of the agencies that does not charge for their materials or services. I will provide a list of all the ones I know who do that at the end of this post for your benefit. When you become an instructor, I assume you will do the same, providing all the materials to your students free of charge, and of course, you will not charge for instruction, will you?
By the way, what you pay for instruction depends almost exclusively on the shop or instructor. I just finished teaching the PADI Wreck Diving certification to two old friends today. Because they are two old friends, I did not charge them a dime for it. We were going to do the dives together anyway, and so all it meant for me was doing the academic work during cocktail hour and spending some time teaching them how to lay line in the yard. It will cost me a few bucks to submit the certifications online and for PADI to mail the certification to them. That's it--a few bucks. You may consider that a money hungry scam, but I am having trouble seeing that.
List of Agencies I know that do not charge for class material or instruction: