User blog comment:MrPacheco101/The Night Brimestone and Fire Poured From The Sky: Etrigan The Demon & Edward Elric/@comment-26074921-20120417040653

I'm going to give my vote to the demon here. Etrigan has far more experience and from what I can tell is extremely durable. Elrics abilities are far more varied but Etrigan's powers might be able to overcome any obstacles (literally or not) that are trown at him. His abilities will do more damage to Elric than Elric's powers to Etrigan. This demon has extreme durability that will allow him to hold out against Elric's attacks which seem to be very physical (transmuting objects into weapons or such attacks) and Etrigan is simply more devastating. The iron weakness is interesting because it would be odd for Elric to suddenly figure it out (being that it is pure iron so unless you give him prior knowledge or he is informed he won't just stumble across it) and even if he does it does not present an instant kill against Etrigan, nor will it incapacitate him.