… I much prefer the ride with the 15" winter wheels vs the 17" summer setup …
Yup. I bought the stock 18-inch wheels for my current Escape off someone on the Escape forums so I could ditch the optional 19-inch wheels. Like having an extra half-inch sidewall.
I need tires next year. 235/50-18s are a bit less expensive than 235/45-19s, too.