I always saw Scarred Lands as the 'other Forgotten Realms' and Kalamar as the 'other Greyhawk'.
Meaning that if you liked the tone of those two TSR settings, but not the implimentation, then the two 'others' would make for better choices for you.
Comparing Kalamar to Forgotten Realms is like comparing oil to water.
I've noticed that Kalamar has poor distribution, and long wondered why. As a setting though, it seems to do well - though I have no inside track on KenzerCo's finances, they're ramping up and not down on production.
I don't how anybody could say Kalamar is not logical, it's the most logical option on the market - everything is researched to match what we know about the natural sciences, anthropology, and sociology. Even the theology matches established norms rather than pop-fantasy. Added to this, magic and non humans are then blended in with a smooth rational-integration.
Kalamar is hardly high-magic. I have to wonder if Iron Chef even knows which setting it is.
And it's tone is anything but 'generic' - though a lot of people make this particular mistake.