Not being accepted by super competitive allopathic residencies.
In what way does the phrase, "super competitive," not compute? Everyone has a tough time with super competitive programs, not just DO's. If you mean to say that there may be ACGME programs that don't have any DO's, or may not readily accept them, then, yes, such programs do exist. However, don't forget that there are AOA residencies, too.
Not wanting to take multiple board exams (both Comlex and Usmle)
Then don't. Apply to AOA programs, dually-accredited programs, and/or programs that readily welcome the COMLEX. All residency programs that receive public funding are required to accept the COMLEX. Thus, taking the USMLE isn't a requirement for such programs. However, many advise taking it in addition to the COMLEX if you are applying to ACGME programs, particularly the more competitive ones. It helps the programs compare you better and potentially open more doors. Boards are important, no doubt about that, but don't neglect how rotating in the program you want to match can make a difference, too.
Not wanting to do extra internships to practice in certain states (How long are these internships)
The year-long traditional rotating internships are required by five states for licensing purposes. If you do an AOA program, it will, in most cases, be included and you won't have to do a thing. However, if you choose to do an ACGME residency, you may have to a traditional rotating internship first, provided you want to practice in one of the five states and don't get approval for your first year to count as the traditional internship (you can apply for this).
Anyone who could comment on these matters would be very helpful thank you.
Don't get too tied up on what specialty you want to do, etc. People tend to change their mind, sometimes multiple times. Concentrate on getting into medical school. Apply to a wide-variety of schools and to osteopathic medical schools, too, if any of them interest you. Take your acceptance(s) and then decide on the best program that fits you. However, if you don't want to be a DO, then don't. Nobody's forcing you. Attending an osteopathic medical school probably won't be the limiting factor in your success. People tend to limit themselves first.
A lot of people come in with grand ideas of what specialty they want to match, but guess what? Not everybody can actually accomplish it, based on their performance, and most simply won't be able to match into the super-competitive specialties. In this respect, it really doesn't matter whether you attend an allopathic or osteopathic medical school. If you don't have a competitive application, the kind that sets you apart from the crowd, attending an allopathic medical school isn't going to be the magic wand that gets you the match.