I graduated with a BS in Biology, decided I wanted to go back to school for nursing, and puttered around a little deciding which program (and length of programs) would be best for my circumstances. I was out of school after my first degree for a year before starting my 13 month ABSN. If I had the opportunity to immediately start the ABSN upon graduation, I absolutely would have done so. I would have done it then, and with a little bit of hindsight, my answer is the same. I did not work during the program. I knew that I would want to eventually go on for a DNP and that grades were very important, so that was my priority. There were some people that worked a little bit from home, but very occasionally. Also, I enjoyed nursing school! I loved learning nerdy nurse things. So I feel like the break that I had would not have been necessary. Obviously, it's difficult to make that assumption since I did in fact have it. The program was definitely fast-paced, but my first degree was at a very small, cheap school, so it did not take much out of me, and is another reason I feel I could have immediately started the nursing program.
Both of my degrees were at small, low-tier schools. But I made decent grades, went on to work at several large hospitals that provided a plethora of learning opportunities and growth, and now six years later I am accepted into a couple of really great CRNA programs! I came to regret not going to a more well-known university for either degree, but for personal reasons only. I was fortunate that it did not have an impact on getting the jobs I wanted. And now I have the opportunity to earn a graduate degree from a prestigious school. If I did not have that, then perhaps I would feel differently and instead encourage you to hold out for your number one choice.
Decide what things are most important to you. If you feel like you could benefit from a break--emotionally, mentally, financially...then do so. For me, financially, I knew that with the money I would make as a nurse, I would be able to pay off any debt incurred from loans quicker versus working a job and saving up before starting the program. Again, just me. Everyone is obviously different and has different priorities.
Figure out what benefits you would gain in holding out for your first choice school versus starting in this other program right away and vice versa.