I m a lower lv than u, but if u wanna listen to my personal advice i m happy to share.
If u r a rich man n hav access to alot of pummel boost gear or hav a slow weapon(like att speed>3500)pleaz use pummel to combo better with shatter.
If u r not rich n wanna spare space for possibly other gear like rupture n shatter rings n hav a faster weapon(like att speed<3500), pleaz, dont mind pummel-obessed ppl, use giant swing. U can combo shatter rupture g swing double att within the time limit.
PS. Idk if this s true but some ppl say pummel sucks upon usage on boss, some say g.swing has too high energy cost.
I use g.swing n i think since g.swing hits harder than double att n double att hits harder than pummel, g.swing s better. I know pummel s fast but for chris sake its not shadowstrike or quickstike, not worth gettin all worked up for.
Please decide carefully.
Lvl 50 giant swing - not very often hitting 3k+ even on training dummies (although it did hit few 3.6k's or even more, but not only less often, its also much slower casting)
Lvl 50 pummel - just logged in to show my friend, hit 3790, left.
Pummel is fast dmg for lvling, sometimes it can hit very well on bosses (although either way, warriors suck for the long runs), it hits very close to max pretty often (lots of 3k's and 3.5k's on my lvl wyrms shattered, some 2.4k's unshattered), the energy cost is low comparing to other skills (lvl 50 less than 140), and the casting is much faster.
if i hit 3.5k with pummel, and 4k with swing, pummel is better DPS, i can almost hit 3 melees (if on haste, swing is faster, and so as melees) during one swing, which covers for half+ of it's dmg, i can barely hit a single melee before casting pummel, and pummel's cooldown is faster (swing's is 20 and so as shatter's, but u cast shatter first, so shatter will be over faster, swing a bit after, at some point swing will not come out of cooldown with shatter, although thats not a big factor and doesnt happen everytime)
DPS wise, even on bosses, pummel is stronger, on bosses u wont be the only one to shatter, im sure u have enough warriors for mordy, shatter will be casted most of time, every 8 secs u can use 1 pummel (although ive tested it, shatter lasts for 8 secs on mobs, so u cant get in 2 pummels, only on ppl at the arena, only ppl not glads, it lasts for 10 and u can use 2 pummels at one shatter)
Overall, if u can get the gear, pummel is amazing.