Bob, my sincere apologies from not answering sooner!! I did just a minute ago. However... Along with that reading your post here I will say durability being important to you.... Go with Menzerna Power Lock. If looks are your most important item than it's Four Star UPP followed by BFWD... Now I want to back track. Being silver I will recommend Ultimate Paint Guard Plus, 3 coats.
Honestly, you can't go wrong with any of these. They are all far superior to the non user friendly and overrated 845. (apologies 845 lovers)
I know my personal opinion is just that and we all have our favorites. If we all liked the same thing we would only have one product on the market.
Out of the three you are looking at in your post there I'll go BFWD.