I've only tried Bubble Bath once, but I'll do a mini-review.
The only other soap I've tried is NXT, which I like a lot. Bubble Bath has richer suds when you mix the 2 oz. to 3 gal. suggestion (I accidentally did 2 oz. to 4 gallons and it still was as good as or better than NXT). The suds last a long time on the car and in the bucket. They regenerate pretty well. Quite slick, comparable to NXT. The cherry scent is nice. It's not a candy cherry, rather a cough medicine cherry scent, but it's better than chemical smells.
I'm not too picky when it comes to a soap, but I really like this stuff. You can find NXT on sale all the time, that would be the only disadvantage to Bubble Bath. I'd buy either one, really. What I did find nice was the pump TOL sells for around $2. I bought it to proportion my gallon quantities of cleaners and stuff, but it dispenses 1 oz. per pump, so it's perfect to screw on to your Bubble Bath jug to get those near-perfect soap:water ratios.
I'll come back and add to this after I use it again (with the correct dilution :doh )