Frankly if you're looking for a job and have (I assume) no experience, it's kind of a moot point. Jobs are difficult to come by and to limit the places you look based only on who runs more 911 will likely make it impossible for you to find a job. Apply anywhere and everywhere and hope that a company that you like picks you up. If not jump ship to somewhere else after you get more experience.
Also getting on a fire department often means took g through the civil service process which can be exceptionally time consuming as well as very competitive, especially considering the push towards ALS FDs in many areas.
One more question, I am working on a resume also, what documents should I make sure are included? Such as cpr card , basic cert, etc.
100% agree...
I wouldn't worry about including your cards until requested by hiring agency. Unless they specifically tell you otherwise. I've experienced both...One agency requested I bring legiable copies to interview the other requested them after I was given the written offer of employment.