As you can see, the folded package is very neat, with minimal protruding parts. Most importantly, the chain is not exposed on either side, which I feel adds to the friendliness of this bike should you carry it in public transport. There is little risk of another commuter getting grease from the bike.
The fold of the Dahon is not as elegant, and you have to be mindful of the exposed chain. Another thing to note is that I found the Brompton to be more stable in its folded state than the Dahon - when in a moving vehicle such as the MRT.