I've been using Honda Pro Cleaner for years. I started using it on my motorcycles before and after a ride. This stuff removes bugs and grime after a long ride or tire marbles after trackdays. It's great stuff for when you need a quick shine and don't feel like getting the hose out. Excellent product and stupid easy.

http://www.motosport.com/motorcycle/...talogId=110516

I use it on the 911 to get bird droppings off quickly before they etch.

 

Can't make a comparison for you, but the Meguiars Qwik detailer is very easy to use. Just spray it on and wipe/buff it off. No residue or haze. Works great for everyday cleanup of stuff that doesn't require a full wash job and leaves a nice shine. I'm sure many of the other products mentioned also work well but my experience with Meguiars has been excellent. Maybe price point and availability will help you decide.

 

Zaino Z-6 spray works wonders between polishing/ clear sealing. I have not used Z-8.

Be very careful about the towels that you use to polish and detail- many will scratch the finish. I buy mine from Zaino or use old 100% cotton bath towels.

 

A long time Zaino user, I just used the new Z8 on my white GT3 after a Z2/Z6 application. Wow! I never thought white could look so good. After the application i could toss one of my folded microfiber towels on the hood and it would slide right off. So slick and such a deep gloss. The Z8 has a yellowish color and is thicker than the Z6, I wondered if it had some sort of Carnuba compound in it. I'm a believer.

 

Griot's Speed Shine is my fav.

 

I used to use speedshine, but I am using z-8! But, I am now using swissvax wax. My atlas gray looks incredible!