Ya know...just as an aside...if anesthesiology is what you want to do with your professional career, why does it matter how competitive is, was or will become? Honestly, I was also heavily focused on this as my match year, 2003, was right at the beginning of the current peak of interest. However, from the other side, no matter how competitive or non-competitive anesthesthia was - I would have chosen to apply for slots. No matter what your scenario, the "best" strategy is essentially the same: earn the highest clerkship grades you can, earn strong LoRs & author a strong PS.
I wish you all the best of luck & success. Yes, anesthesia has become markedly more competitive than it was in the mid-90s, but it is not up there in competiveness w/ neurosurg. So, relax. Besides, you should choose your specialty based upon your professional wants & desires - not upon some abstract matching strategy.