I like both and have worn them. More Dzing! that Chinatown, but I think both work well on a man. I do perceive them as different, though. Dzing! has dirty musks and smooth leather - I do get the circus feel and all the nice dirtiness. Chinatown is a rich and complex fruity patchouli, closer in feel to Angel and the angelic tradition than to the musks and leathers of Dzing! As you say, Chinatown could be considered more traditionally feminine, because it's fruity, though nowadays masculines tend to be very gourmand as well.
If you like these two, you could explore also other perfumes that hover in their territory. For instance, Visa is a fruity wood and leather, distantly related to Chinatown, but perhaps a little more restrained. And for something dirtier, there's vintage Tabu (vintage but still cheap), oriental, musky leather, and vintage Shocking (ditto), honeyed animalics.