I'm really happy with Dayton Daytona ZR 225/50ZR16. It is W speed rated. The set I just replaced still had a little life left but I had an unrepairable flat on one and replaced them all. They lasted 60,000 miles.
Dayton is a Bridgestone brand. Both the old set and the new set have "made in Japan" molded on the sidewall is very small print. Although I don't completely believe the guy in the tire shop, he claims that it is the same tire as a Bridgstone RE750. I suspect that it may be the same carcus but with slightly different tread compound. The Dayton has an A traction rating while the Bridgestone has an AA traction rating.
The tread pattern on the Dayton is a little different from the Bridgestone, but looks to be identical to another Bridgestone brand, Fuzion. I suspect that the Fuzion Zi is close, but not identical in other ways.
Anyway, if you want long life, good wet handling, and good dry handling as well, have a look at Dayton.
