I wore the shebeest Ultra Ds on my 62 miler last weekend and will probably wear them on my 300k Saturday. They were quite comfy. I have never tried any LG's, but they have gotten some good reviews.

Assos are also great distance shorts. I have done a number of double centuries in them. Mine seem (to me) be be more warmer weather shorts so I have not been wearing them as much. The material is a little thinner and they are a little shorter. May just be the specific ones I have. Super comfy chamois, though!