reno has alot more sidecut, which i would think would make it better for all-mountain, the tahoe seems like just a wider variation of it. personally, i would go with the reno.
Not very many people will be able to give you a comparision being as they're both smaller companies. You'll get alot of Surface reviews, but not for Moment. Go with your gut.
go with the tahoe's. the reno is a sick all mountain ski, but the tahoe is the only ski i've seen of its size that shreds the park like a park ski and rides the pow like a surf board