I've had a few days to compare both jackets so.....here it goes. I did most of the testing right around freezing temperature 32F. Wind was mild to light.
Breathability-Goes to Kenai but the FL has an ability to shed small amounts of rain so this is will make it slightly less breathable.
Warmth-Goes to FL. I will use the Kenai during opening week when below freezing is only an outside possibility at night. FL for a few weeks later when I might be wearing it full time during the day.
Fit-I have the FL in large and the Kenai in XL. The fit goes to the FL. I'm 6' 210 with wider shoulders and long arms and the Kenai almost had me worried that I had to go to an XXL which is crazy talk. Everything on the FL is where is should be fit wise, lots of range of motion, no riding up. Cuffs around the wrist are also way better on the FL.
Noise level-Don't matter to me, I have other clothes for hunting deer out of a tree stand.
Weight-Kuiu
Durability-FL
Hood-FL
In conclusion, I'll say I can't and won't pick a winner because I see myself using these for different times of the year. For me, this would be no contest if the FL made one improvement on this jacket......
PIT ZIPS!!!!
Hope this helps.