Talk of the Michelins is somewhat pointless since they don't make anything in our sizes. Sizes are only 18" diameter & up.
I wouldn't let the Trofeo R's tread pattern influence your decision all that much. After some days on the track, that tread is going to be very shallow and provide reduced wet performance.
The treadwear ratings on the tires are meaningless when you're talking different manufacturers. The intent behind this numbering system is to use 100 as a "control" tire in the manufacturer's various tires. From that 100, above or below, you get a feel for their tires' wear relative to each other. However, another manufacturer's 100 control tire may be significantly different. So Bridgestone's 100 tire is not equivalent to BFG's 100 tire and so on.
Tire Tech Information - Uniform Tire Quality Grade (UTQG) Standards