Which is better for CES? ERES, CGFNS, IERF

Hi, I'm planning on applying for NCLEX in the state of Texas. I am a foreign graduate who has not taken the local board in the Philippines. I am an American Citizen. I would like to know which one of these services would you recommend for me to use? I know that CGFNS has a lot of pros. Some of which do not matter to me. I know that it can be used to help get a visa, which i do not need and that it can be used if I chose to work at a different state, which I am currently not planning on doing as of the moment. I don't know much about ERES and IERF, so any help would be much appreciated. Time is an important factor to me and from what I have read, ERES takes about 3-4wks, CGFNS about 4mos avg, and IERF about 30-40days...I also know about the costs of each, but I want to know which is reliable and which would be easier to apply for. Does anyone have any experience with these places? Thank you for your time. God Bless!