I ate one of my tree ripened Pickerings today in a sort of mini taste test. I did this at work, with about 6 people of differing ethnicity and mango experience.
Those being evaluated were all from my yard or a neighbors yard.
Ranking ...
1. Edward
2. Pickering
3. Angie
4. Carrie
5. Cogshall.
All of these mango's were well ripened.
The Edward was, well, a very nice Edward. Full, rich, sweet, perfectly balanced.
The Pickering was also very, very good. Maybe just edged out by the Edward, and amongst the best of this season for me. I have it in my "Top Tier" of 2012.
Angie and Carrie were good, but not as good as previous years
Cogshall rounded out the final spot, and wasn't bad, but certainly no competition for the Pickering.
Again, taste is subjective, but 6 out of 6 chose Pickering way above the Cogshall in flavor.