In light of this post I have tried PGL on the Moogle fight in lieu of my ARC.

Total fight damage is ~2,000-10,000 less than archer (maybe due to wide volley). There are several reasons for this:

-Server issues: Many chains end up missing and costing TP due to the combos are taking "Your client side position vs server side mob position". So you must guess which way the Mog you are trying to chain on will be facing about 2-3 seconds later than its actually displayed (most US should be about 2-3s delay from JP server). This probably causes 10-15 lost combo's over the course of the entire fight.

-Hate bouncing is so prevalent in the moogle fight it compounds this problem. Its very difficult to tell if a moogle is starting to run, hate got swapped so its running new direction etc. Many times I just blow Taunt so I can start the Simian Thrash combo and know for sure the moogle is facing me even though its a different direction on my screen.

-Fist of Fire doesn't always increase damage despite it raising your ATP by 120%. Yes, on Whiskerwall it raises your normal hits from 35 to 100, but on Good King Moggle Mog it actually lowers the amount of damage you do. With it up I hit for 48-50, and when I went OOM I started hitting for 55-57 or about 115% harder. This means the Good King must have high enough Fire Resistance to not make it worth using. Also on other mob types and "low defense" mob types its better to keep your damage purely physical, and there are other situations where your damage is the same or less using FoF against these mob types. (Note, I did not try Fists of Earth against the Good King).

I will concur with Noctis that PGL does have a larger damage output possibility than ARC does currently but it is much more difficult to obtain due to the server lag, and makes it much more annoying to play than ARC whom can consistently get all their combos off every time they want to.

If the mob stands still PGL will beat ARC DPS without a doubt but currently the fights in XIV are not built this way (Ifrit isn't a stand still fight in the way I mean... the closest one would be Uraeus). Perhaps they will lean more that way now that they know the server issues with the US and EU, or maybe they won't. I am confident I could beat our ARC's with PGL if I spent more time at it, and got perhaps a perfect run where I could accurately predict every time which direction the mobs are facing.

I do look forward to MNK and seeing how it can do, along with it getting Kick's as a damage boosting pure physical attack in addition to Fists of Wind. I wager to say it will still be the best single target DPS if the mob doesn't move much, or do many effects (like Ifrit) where it inturupts combos. PGL does a large portion of its damage in the fight against the Good King for those very reasons.