dfi expert, please dont think that 2*16 slots are faster than 2*8, we have a few years untill that starts to happen, also the dual chipsets are harder to clock and produce more heat.
The asus has warm boot issues, the dfi expert was simply plug in and go for me.
The settings are automatic to begin with, when you learn all the settings you will be glad you got the dfi.
There have been no death issues since the bios update and even then it was only a few people.