What's your favorite polish?

[Paul]

You want the effect on the top of this hood.

http://www.meguiars.co.uk/meguiars-tech-what-is-water-beading/

[boxxster]

Wax/sealant makes your car:

-look nicer
-easier to clean (dirt/dust sticks less)
-easier to dry (water blows right off with a blower)
-more resistant to bird poop and hard water etching
-more resistant to contamination (iron/brake dust and sap won't bond as easily)

Why you would not want any of these things is beyond me. But hey, its your car.

[Perfectlap]

Originally Posted by Paul

You want the effect on the top of this hood.

Meguiar's Tech: What is water beading? - Meguiar's

You are absolutely correct water beads are a problem but the pluses far outweigh that downside which is mitigated during your seasonal polishing. I'm not familiar enough non-beading waxes to say whether they protect the paint from environmental pollution and sun damage to the extent that most conventional sealants and waxes do but there's no doubt that the paint will remain well protected with a beading wax. Case in point I have family in Central Florida and I make a point to wax their cars seasonally which are parked outside during the day. Cars that are newer that are very obviously never waxed (non-enthusiast owned) are absolutely destroyed by the constant cycle of rain, intense sun, repeat. The color has faded, the clear coat completely peeled away and the base paint basically matte finish.