Jim, I believe that tire availability is the key. I gave up on 14" wheels and skipped over 15" wheels as well due to dwindling availability of quality tires. While there are still some 15" tires in the proper sizes, the selections are getting thinner by the day particularly in performance summer compounds.
I went with tried and true Panasports in 16x7, but there are many cheaper choices that bolt right up. If you like the flat face look of modern wheels, you could go with Honda wheels and use spacers to correct the offset and bolt pattern.
If you choose 16" wheels, there are TONS of quality tires in any style you need. I went with an ultra high-performance summer tire from Hankook and love them. Don't let the name fool you. Hankook currently has the most modern equipment in the industry and they make very high quality tires. They have tons of grip and are inexpensive.
Here is a gratuitous picture