Witch firmare asus rt-ac68u dd-wrt or Merlin?

Hi,

I now running dd-wrt also have Merlin used.
Melin looks like the original but with more options.
dd-wrt i already knew with nu linksys 54g(v1).
It is still not final but runs smooth.
Witch firmware is better?

Also used at a alix board pfsense (fortunaly not for the Asus available).