I think Schwalbe's biggest problem (other than price) seems to be their inability to keep their product in the marketplace. Frequently, there just aren't any available for sale.
Like many on this BBS, I find the Supremes to be just plain awesome in performance.
I currently ride Supremes in 700X35 front, and 700X40 rear, which is an awesome combination for me. I even have another set, just like them, in reserve.
I ride a lot of paved MUPs, some paved road, some gravel road, and some fine chip paths, with occasional dirt and grass. They do fine everywhere, and really shine on pavement.