I have a Reuleaux and love it but I am not much of a tweaker or techie so the escribe software doesn't float my boat. If you love to tweak though then get the Reuleaux and quick, they ran out of DNA 200 chips so it might take awhile to re-stock. The Reuleaux works great with just my normal tanks without any tweaking, just remember to go into escribe and adjust the mah of the battery your using so the battery indicator works correctly, default is 720 mah.
Instead of the Fuchai how about the SMOKTECH KOOPOR PLUS? Same wattage but the Koopor adds support for SS coils TC and is actually a little cheaper. I have to admit that I didn't like the look of the Koopor until I saw my buds Koopor mini and it is a lot better looking in person.
You know you want some Jaybo design though, just pull the trigger, you won't regret it.