Formula wise the only color that I can really recommend is the blue crackle. It's the only one that didn't seem to have any "huh" moments.
The black cracks very dramatically. It pulls away from the nail edge quite obviously, which the blue didn't. And the gold didn't really crack at all.
Of course this all can depend on the amount of the polish that you use.
The brushes that Sally Hansen uses are small and short, but flexible, which is better for shorter and smaller nails.
I decided to compare these 2 because they're both foil finishes. As you can see, the foil texture in both of these polishes definitely has an effect on how these types of polishes crack, it's not just the brand. In both the OPI and Sally Hansen polishes, I've found that the foil finish makes the polishes crack bigger. If you use less polish, the color of the foil, whether it be gold or silver, is really sheer so when it crackles it's thin and more "crackly" but the color isn't opaque enough and it's really difficult to distinguish between the top coat and the color underneath. It ends up looking like you just did a sheer wash of a foil on top of a regular nail polish.
The Sally Hansen color definitely separated less than the OPI though. Antiqued Gold is a very pretty color but it's (for me) too chunky to be used thickly over a polish. If you prefer bigger pieces though, then maybe this is something you'd be interested in.
To start off, I used quite a bit of polish for the Spilled Ink swatch, so that's why the pieces are so big. I used a medium amount for Black Shatter which is why it looks so picturesque in terms of Shatter/Crackle Polish swatches. What struck me as odd though was how much Spilled Ink pulled away from the edges. It definitely shrunk inwards instead of just cracking apart as the Black Shatter does. Perhaps if I used much less polish then Spilled Ink would just break apart instead of shrinking inwards? I don't know. Neither of the other 2 shrunk inwards though.
For this I know the formulas and colors are different so there really is less of a point to compare them but I thought I would anyways because I know somebody will ask.
Distressed Denim is a creme (almost jelly) Crayola Blue color. It had the best results of the 3 that I purchased as it didn't pull from the edges, and it cracked pretty nicely in both thin and thicker coats.
Blue Shatter is a slightly shimmery blue that's lighter but still crackles pretty nicely. If you're having a hard time locating Blue Shatter then definitely check out Distressed Denim as it's not a bad replacement and works pretty well.