Hi. I just bought the Feather Pack Hooded Jacket 1 month ago and it could be that they improved it from 2 seasons ago. I can’t compare it to the MB Alpine Light, since I don’t have it but I can compare it to my Patagonia Ultralight Down Hoody and say that it is much warmer than the Pati. The Pati has 3.5oz of down, the EMS 5 oz, and the MB has 4.8 oz. according to their website. Whereas my Pati starts to get cold for sitting around camp use in the upper 30’s with a wool base layer, my EMS jacket still keeps me warm in camp into the mid-20’s. It is much puffier and warmer than my Pati jacket and I think that they may have increased the amount of down that they use from previous years. Honestly, the Pati doesn’t impress me too much, but it’s what I have, so I’ll still continue using it in the summer time at altitude (camp use, pillow, and wear to sleep when it gets unexpectedly cold at night), since I don’t need the EMS jacket and 4.5 oz more weight in the summer. However, I really am starting to anecdotally think that dry down is better at dealing with moisture based on my use of this EMS jacket and a MH phantom sleeping bag. The EMS jacket has become my go to mild winter puffy for hiking and around town…..while I also have my 3 pound parka for when it’s really bad.