I'm sure I'm late and this topic is derailed but, as war/nin, both Gaxe and Axe merits capped. The first night after the update (not the new one I haven't played since then) I exp'd in Mount Z on hilltrolls, not the best place to see the big numbers, but good since their def is high.
I used my Perdu voulge and I did some Steel Cyclones (which I have like +50ish str and +40ish VIT for ws), I did some Raging Rushes (which I used Rampage type gear for since its crit hit etc) and I also switched to my man/jug and did some rampages. Now even with both merit categories capped and all my gear, I still seemed to do better popping a 100% rampage than i did a 100% anything else, and really though I found Raging rush to still suck, only it was diong more like decimation numbers instead of Calamity numbers (btw. Try calamity with all ja's and mighty strikes at 300% it makes big numbers) and Steel cyclone was doing much better, but still not worth switching to G axe in exp pts. I still need to try out some other areas though like mamools and such to see what I can do there, but war/nin axe/axe is not a job you should kick from your pt, unless they have complete crap gear.