You clearly follow the market, technology, and how the tires suit these cars.
Okay, it's showdown time. Would love tie-breaker help.
I don't drive the car that much, maybe 1500 miles a year. Can't justify bigger expense tires. I do no hard-driving, only 'spirited' street driving. No ice, no snow. Some rain. Mostly fair weather.
So, your choice on stock 7 spoke wheels:
1) Bridgestone RE760s, 205/45 x 16s, 255/40 x 17s.
2) Kuhmo Ecsta XS, 215/45 x 16s, 255/40 x 17s.
3) Yokohama S-drive, 205/45 x 16s, 255/40 x 17s
All 'about' the same price. What's your choice? (drumroll...)
If you're looking for maximum performance for a street tire, then these are my preference in order:
1) Bridgestone RE-11
2) Toyo Proxes R1R
3) Falken Azenis RT-615k
4) Kumho Ecsta XS
These all offer phenomenal dry traction with the bridgstone and toyo having the best wet and rain traction. The falken and kumho is also good but just lacking the confidence and handling in the wet versus the other two tires! I have experience with all the tires besides the R1R but I have heard nothing but great stories from it. The RE-11 is by far the best dry/wet handling street tire I have ever had and couldn't be happier! It does, unfortunately, comes with a bigger price tag than the other ones on the list.
However, if you're looking for more treadwear and comfort, these should do good as well:
1) Continental Extremecontact DW
2) Bridgestone RE760 Sport
I have the Continental on my e39 m5 before and they have very good traction and by far the most comfortable summer tires I have had before. I couldn't comment much about the RE760 Sport since i have never had them, but the characteristics of that from what i have researched up is it offers the best of all season comfort and wet traction, with plenty of dry grip as well.
So if you don't drive hard, maybe the continental or RE760 Sport will suit you best!!
The other small note is that if you're going for 205/45-16 fronts, it is best that you get
245/40-17 instead of
255/40-17. Honestly I don't know much about why people recommend that but a lot of tire guru's here don't suggest that combination. A little bit smaller size wouldn't affect much too since you're not driving hard/tracking your nsx. Also, smaller size means cheaper as well =) save some money!
Have fun and good luck hunting for some new shoes!