This is like asking what is better Blond Brunette Black or Red hair on a woman you are going to get a lot of different opinions and each one thinks his choice is the right one.
I try to refrain from getting involved in these so I'll just say do what Mike Phillips said find what you like and use it often.
I just started cleaning the selves in my garage yesterday of a lot of products that I know I will not be using.
After several years and wasting hundreds of dollars I found what is best for me so my search is over.
I really thought I settled on a sealant some time ago (Zaino), but that doesn't stop me from trying other ones. Like you, I'm "wasting" dollars trying to find if the others are worth a darn.