Any of those wheels would be a good choice. The ones on your car look great; those look like 16"s. Did you lower your car as well? We have a white Avy too.
I've realized that an upgrade to 16s or even 17s might be a better choice, and possibly even easier to find than 15s. My local CL has quite a few 16"/17" OEM Lexus and later-model Avalon wheels advertised for reasonable prices. Our car's PO recently bought all new Goodyear tires for the stock 15" wheels so maybe we'll shop around while I'm using those up.
Regardless which wheels I end up with, I don't want to attract TOO much attention. Our '96 Accord, which we purchased new and I had lowered with nice 16" alloys was stolen in January. I don't want to re-live an experience like that.