You will probably always have good luck with Dura-Gloss But Pinnacle Signature series II is just great on lighter color cars. My silver Monte carlo SS looks Just beautiful when I Detail it...:buffing:
I love Nattys Blue on white, that and DG 105 topped with AW. Two fave combos for white. With Nattys Blue I did it straight on, after klasse aio like 3 coats, white looked deep, and wet and and had an awesome glow. DG 105 and AW is about the same but more durable, gives a great glow and pop to white.
I was impressed with P21S paint cleaner, & Wolfgang Deep Gloss Sealant 3.0. It looks great on my white SUV. I've also used the DG line and Zaino on my paint.
The Wolfgang 3.0 is the slickest. imo
If you're on a budget, and can buy it locally the DG line is really good. I wouldn't hesitate to put DG back on my SUV. Zaino Z-2 is good too.