what's the best car wax?

P21S and Blitz are both very good.

Griot's Best of Show.

PIA to remove...especially when compared to Blitz or P21S...want an extra bottle? - - >
 

I have a full bottle of Best of Show Wax. Every time a "give it a second chance" I hate it as much as the last time. It's way too hard to remove. Ever with Griots MicroFiber cloths...

I'll sell you mine if you want it!

I was a Blitz man for 10 years. I guess it is all subjective.

Meguiar's Medallion Paint Protection.

AGREED! Major PIA to remove even with a buffer, but...
 

does provide an outstanding shine and is very durable. Used it on the Santorin S4 and was happy with the results. Have yet to use it on the silver one. Used to use Meguiar's Gold Class and the multi-step professional stuff, but wasn't happy with the results or durability.

You have no problems removing it?

It is easier than Zymol and a little harder than Blitz, but results are well worth it, IMHO.