I never used Chlorhexidine or HH. But, will probably start buying and using the Chlorhexidine, since I've always read good things about it and seems much cheaper than the F10.
But, I like the smell of F10. It's not artificially scented, as you know, but smells "fresh" to me, after I wipe it all down. And safe for the animal. How does the other two smell? I think you already said HH smells nice.