I'm liking the pair of Cinturato Gravel H I bought; they are very low rolling resistance. Too soon to say about longevity and toughness (though since going tubeless flats have been so rare across many brands of tire, I don't seem to care as much about puncture resistance any more). They're on the heavy side in all sizes. My particular 650x50 tires though, Pirelli's specs on their site are just plain wrong. They're 640g tires listed as 540g.