Depends on the car. The SS lacquer on the Jag looks best (to me) with Autoglym SRP topped with Souveran, but on the S8 I prefer 1Z topped with 4-Star UPP. But my wife prefers 3M Showcar Paste over Pinnacle's (discontinued) Creme Glaze on her A8. Heh heh, the other vehicles get products that last, but don't look so hot (to me).
On my Lt. Pewter Jeep I like 1z MPP + Glanz wax. On my wife's Black Mustang she like the Blackfire combo. Lastly, on my son's Chargold Jeep he likes Klasse AIO & SG. Different combos for different cars.
My mind fluctuates as often as the weather, next week I might have another favorite... That's what makes all this so fun, allways something new to discover.