I didn't read 7 pages, but I worked at both mountains for a substantial period of time. This is my perspective as an expert skiier:
If you like to "get lost" (in a good way) exploring and and skiing all kinds of terrain, Killington is the best (my favorite, by far.) If you prefer finding that small hidden gem in the trees and don't mind skiing the same area quite a few times, you might like Stowe.
Killington is BIG, Stowe feels tiny in comparison. People in Stowe thing their mountain is way better. Killington has so much more that you're likely to find your own thing that isn't talked about as much, but is just as magical (to you.)
Off trail snow can be better at Stowe. There seems to be more 'light powder' days that make you think of the west coast. But they are few and far between, so if you get one you're lucky, but I wouldn't plan my trip based on that (go to Jay if that's what you want.)
après, I personally really like Stowe. The village is quaint, the shuttle is awesome, the people are great (unless you say you like Killington better, lol.)
If you're a family I'd probably say Stowe, Killington is a bit more chaotic and Stowe is more calming. If it's just you or a couple of advanced skiers, you're likely far away from the chaos at Killington so that doesn't matter.
I lived at the base of the mountain road in Stowe and worked in facilities there after college. I worked on-snow at Killington throughout college, including the seasons I 'took off from school to ski 7 days/week' and lived about 45min away.