Hi: I am a new RN, graduated in May, passed the NCLEX in July. Worked on a med/surg floor for 2 months and just started my OR program. I believe working med/surg gave me confidence that I could work med/surg... before that I thought I could never do it! OR is completely different. You do need time management skills, prioritization, organization, multi-tasking and critical thinking skills to do med/surg or OR or PAR. A lot of that comes with the OR training and I have heard from RNs that went through the OR training, that they did not really feel like OR nurses (that everything really did not come together) until they were working as OR nurses at least 2-3 months, and some for longer (like years).
In the OR you are learning asepsis, positioning, legalities, instruments and how to deal with a number of different personalities (the last true of anyplace you work, I guess).
In my institution in med/surg the nurse to pt ratio is 1:5. In the OR it is 1:1. Because I only have one pt to deal with at a time in the OR, I can be focused on that patient and not be spread out over 5 pts (some of which have a high acuity).
My instructor says that if you are just out of nursing school, you may not have perfected your IV start skills, your blood draws, your fingersticks, your hanging piggybacks, dropping NG tubes, etc. so there are no "skills to lose" (a common refrain).
I guess I am rambling. Anyway, I like what the other poster said about following your bliss - why do anything you don't want to do!? Life is too short.
Decide for yourself. If later on you find OR is not for you, you can be oriented back to med/surg - you're not stuck forever (or you can be a nurse that does not work in a hospital; there are a myriad of choices).