That Vittoria Randonneur Pro looks nice, 1.5in is 510g which is very similar to the supremes.
I'm fairly certain that I mentioned in my supreme review that the sidewall is flexible but thin, so you have to keep this in mind, for not riding your bike up against sharp rocks, the classic "miss something with your front tire but scrape the sidewall of the rear tire against it" thing.
So rough and sharp large rock trails and or sloppy riding in general against any stuff is not a good idea with supremes.