What is your favorite? I need to pick something up today until I have a big enough order to order something that has to be shipped. (Damn those shipping costs.)
I use the Gloss-It QD. It's the best there is - period. You can buy a 3 22oz pack for $45. You do have to ship it, but the ship cost is still worth it considering how long it lasts. The Megs product cannot hold a candle to it - and I used to use nothing but Megs.
The first is ONR or DP version at QD strength for general spot cleaning/detailing (like bugs, bird bombs, etc). I like Mothers too..cheaper than any non-OTC and the smell is great.