Snaps brought up an interesting point about MNK regarding zergs:
Lately we've been using Crystal Blessing + Warcry for anything that requires zerging (originally we just used Warcry, but now one of our mules is free to give SMN buffs) along with 4 rolls/5 songs/4 bubbles so we're pretty maxed out as far as buffs go, which brings me to my point.
Warcry/Crystal Blessing/Aeonic/Moonshade puts you at 2750 TP if you WS at 1000, and it is pretty easy to spill over with massive amounts of STP/Multi strikes, so to illustrate my point I'll just consider all WS to be performed at 1250 TP (3000 TP).
Raging Fists:
30 STR/30 DEX
9.0 ftp + 4 1.0 ftp hits = 13 ftp
Resolution:
85 STR
2.25 ftp * 5 hits = 11.25 ftp
After multi strikes (we'll define it as 2x DA to keep it constant) it becomes 15 ftp for RF vs 15.75 ftp for Resolution. The mods on Raging Fists aren't nearly as good but it gets the benenfit of having a 1 hit 9.0 FTP and MNK has access to a lot of good WSD equipment.
6 ammo, 5 head, 2 ear, 5 body, 10 hands, 10 back, 7 legs, 5 feet = 50 WSD.
Here are some other "high end WS" for comparison' sake:
Savage Blade:
50 STR/50 MND
13.75 ftp + 1.0 ftp + 2.0 ftp (2x multi strikes) = 16.75
Tachi Fudo:
80 STR
8.0 ftp + 1.0 ftp (1x multi strikes) = 9.0 ftp
Stardiver:
85 STR
1.75*4 ftp + 3.5 ftp (2x multi strikes) = 10.5 ftp
Rudra's Storm:
80 DEX
13 ftp + 1.0 ftp (1x multstrikes) = 14.0 ftp
As you can see, under fully buffed conditions, Raging Fists is actually pretty competitive, paired with MNKs high white damage and high defensive capabilities, I think they'd be able to do pretty well. Granted, under those conditions, probably any DD would do well but it goes to show that MNK isn't completely worthless.
edit:
I realize people will come to try and pick this post apart with minor details like HURR DURR RUDRA'S WILL TRIPLE ATTACK (I'm aware it's not likely to DA, but I specifically defined multi strikes as DA to illustrate a point) and I realize that ftp alone isn't a good indicator, like how Raging Fist has 13 ftp but really only 9 of it is subjected to WSD vs Savage's 16.75 and Rudra's 14.0, but I honestly think this is worth giving a try. We'll have 3 Godhands MNKs next Aeonic round and we plan on fighting Albumen with MNK MNK MNK WAR to see how it goes. We can kill it in about 2 min flat right now using a mix of SAM, WAR, RUN so I think if we can do it in ~2.5 min we'll consider it a success.