I've been toying with dressings all summer. I've only gotten Meguiar's stuff because it's readily available to me.
I've said it before but I'll say it again, not only is tire dressing a personal taste, but I believe some finishes look better than others depending on the wheels and color of the car. I have a sparking white car with chrome wheels, and I like the look of a pretty wet tire to go along with it.
That being said, here's what I've discovered (all Meg's):
Endurace Gel - great shine, will sling a little depending on the applicator; some foam applicators will become saturated and the excess can get caught in the treads. I don't like to knock this product down, so the applicator becomes important. It's kind of a drag to apply, eapecially when compared to....
Hyper Dressing - I use this product full-strength, with a microfiber applicator. It's cake to use, spreads well, leaves a nice shine that is...clean, is the best way to put it. Minimal sling.
Ultimate Insane Shine (foam) - I also like this a lot, and purchased it without realizing it was a foam...or rather, without realizing that they also make a coating which I assume is a mist or something. When the foam settles there's WAY too much product left on the tires, so I started wiping it off with a towel. The stuff feels really tacky. Even with a wipedown, there's moderate slinging.
I usually drive off not to long after applying dressing (which is part of the sling problem), but I've learned that keeping a bottle of waterless wash in the trunk takes care of that after my first stop.
...and yes, I have stopped at banks, parks, and grocery stores just to get out and wipe off any sling, without actually needing to stop at banks, parks, and grocery stores

)