Thanks Nick appreciate the compliment very much especially considering the source.
In terms of rating the fore-mentioned features of all the sealant I have used would be extremely difficult. There are many factors involved with the most being my ever-improving prep techniques and tools. Every time I try a new product I always remind myself the improved results may actually be the result of a better prep. Is product X actually better than Product B that I tried 3 years ago? Has this last product inherited a better canvas in which to display it's results? Other factors are color and quality of clearcoat. One product and less meticulous prep achieve outstanding results on my wife's black LS400 where a more intensive prep is required to achieve equivalent results on the Z28. Another factor is virginal testing. As everyone knows I try many combos because of my obsession to achieve the ultimate shine and addiction for trying something new or improved.
Another factor is ambient lighting. Cloudy day, high noon, cruise night and evening low angle lighting. I believe and experienced that many of these products excel under these differing conditions and some perform poorly.
The hardest part is grouping. What is considered sealant? Polymers? Amino-functional resins? Zaino, Meg #20, Wolfgang and Klasse. Can I include Clearkote's VM/MW, UPP, BF, NXT, EX and EX-P.
Nike, I hate to seem like I am avoiding an exact answer / opinion on your question, but I feel all of these products create excellent results in terms of reflectivity, shine and gloss. To state which one produces the highest score on all 3 elements would be very difficult and I do not believe I have all the "virginal" data to come up with a universally applicable conclusion.
What I will say, and I know this is not news to you and most Autopian, is that with Type-A inspired preparation, only Autopian driven detailers could distinguish "visually" one product's individual result from the other.
Sorry for the PC answer but I like and use all these products. The small difference between these sealants makes none of them expendable from my arsenal (adult playpen), along with carnaubas. There is some over-lap between some of these products but they all have their individual personalities that I enjoy exploring in search for that ultimate shine.
Maybe this Spring-Summer I will do a virginal comparison on the LS and let my wife rate these features. Can't get more unbias than that.
Over the last 2 years I have gotta the "Oh WOW! What did you use on the car?". That was from Souveran and recently the WG twins. I plan on topping her WG this weekend with EX-P and I will report back her response. :wavey