Evan DPM

-35 Passive Magic Attack for Evans. Didn't look like you included this, but this would slightly help the Evan case. The only thing AMs have competing is Meditation, but it's pretty negligible.
-Dragon Equips. Unscrolled, but leveled up to the max, you can have an additional 18 LUK and INT, along with 12 extra slots. Arch Mages do not get this. You can also throw in some speed.
-Last is Onix's Blessing. Gives an extra 50 magic attack.

These can all be negated with an analysis of my results which I failed to do before presenting a conclusion:

An F/P AM with Paralyze 30, Elquines 30 with comparable stats will be stronger than an Evan using Blaze with 11 M.ATT. If you add in any of those in any combination, I don't think you would get more than 150 M.ATT even with godly scrolling, this would lead to an Evan being stronger until the F/P can achieve 878 M.ATT. This value is easily achievable especially at the level at which we are comparing, the Evan and therefore the F/P must be at 180 for the skills we are comparing and at 180, INT alone gives 900 M.ATT.

-The vast amount of types Evan have. Fire, Ice, and Lightning, Dark (lol), and that seems like it should hit most monsters for Super Effective Damage. If some monster resists all of these, well, you have Elemental Reset. Archmages don't.

I'm only demonstrating the Evan's inadequacies in terms of single target DPS where only Illusion and Blaze would be of any use and if current boss run don't include mages aside from friend runs, they surely will not be including someone who is weaker.

-Unfortunately, I do have to add the fact that Archmages do have a 5% stronger Amplification, albeit with a 20% more MP cost.

These numbers are working with the changed or "balanced" 150% damage Amplification brought in a recent KMS patch making AM's Amplification 15% stronger.

-However, that can be negated by Dragon Fury, which gives an extra 10% damage to the Evan when the MP is between 50 and 80%. Easily remedied by pets.

This has already been included in the calculations as a damage multiplier 1.1.

Why would you compare an evan to an I/L at level 160, when evan JUST gets his strongest skills at level 160?

At 160 it doesn't even matter, unless the AM used some odd BB or Infinity or other odd build they are already stronger as long as their single-target and summon skills are maxed.