I have to say my favorite now is D300 and the microfiber line. Great workability and finishes down great, from a truck I did above. However I'm always on the hunt for the best trim product!
I haven't had a chance to try any of the Detailer line, but after reading through this thread, I am going to order some APC+. It seems like everyone loves that stuff.
I've never used Meguiar's products, so I don't know which one would be my favorite. Although I don't have a favorite product I'm willing to try any of the products AGO offers!
Hands down...xpress spray wax. Versatile, easy to use, and a really slick, glossy finish. Customers think its something really expensive. Can be used wet or dry. What a nice product at a great price!
My favorite is wash and wax cars wash soap the yellow one with the yellow GTR I hear gold class soap is the best but I have not tried it first hand but I would like to try it one day.
I like Meguiar's X-Press Synthetic Spray Wax - there're many spray waxes on the market but I keep coming back to this... it mists on and buffs off easily, and it affords durable protection.
Leaves nice wet-look shine.
I use the entire detailers line. My favorite if I had to choose would be hyper dressing. Great to spruce up faded interiors at 4-1 and at 3-1 looks good on tires and wheel wells.
I used the old version of the gell and loved it