With the 4t10 set bonus in addition to your rip already being able to crit, and the differences between white and yellow attacks, it seems to me like agi/crit will still have value that competes with and perhaps surpasses str/ap.
As far as I can recall, the periodic damage caused by bleed effects is not subject to glancing blows or boss avoidance. A large portion of your damage, perhaps larger than your white attacks, is caused by your bleed effects, after all. This will be even more pronounced with 4t10.
If you lack behind on exp and hit, then you should gem for them.
If not agi might be better than haste because it is just whitecritcap we are talking about but also this depends on which set of gear you are using.
Best way to find out is take some time and model some different sets of gems in rawr.
I saw haste beeing even better than hitcap but I am still writing exams and I will test it in a couple of weeks.
A large portion of your damage, perhaps larger than your white attacks, is caused by your bleed effects, after all. This will be even more pronounced with 4t10.
Although bleeds are a large portion of our damage, it's not close to the amount of white damage. On average about 36% of my damage is white hits. About 28% is bleeds. Admittingly the % of bleeds from 4pct10will go up, but then again once we go for hardcap ArP so will white damage.
I'm not saying Agi isn't the way to go though, but I think Str might just come on top once crit and ArP will be capped. Str was always very close to Agi to begin with.
Best Rawr totals i have come up with have put us at 14542 dps. This give us 74.65% crit on boss (averaged with mongoose and current DBW procs, Rawr number only). Non proc based flat crit on boss at 70.53, 213 hit (im alliance so i have HP), 126 exp, 1396 ArP. Trinkets being DBW and HWT.
After playing around with different gemmings, gear setups, etc, this is the top I was able to come up with. This is also pre- Arthas gear discoveries.
Has anyone else seen a better setup.
Edit: I fully understand the modeling differences with SimCraft, Rawr, etc. Just looking to see where what type of "big picture" we are looking at.
I have a question about a specific situation: I have 5 combo points on the boss, mangle, and rip. Rake just fell off and rip is about to expire in 2-4 seconds. Should I reapply rake and then rip or rather trade 1-2cps for the rake downtime and rake after ripping?
It depends on how badly you need the CP right after the Rip. I don't have sim-backed results here, but my intuition says if your SR is also going to expire in the next 10 seconds, then don't rake and pool your energy.
Yeah, sorry for not mentioning source. I picked up one last night, and this morning it procs Speed of the Vrykul. Seems to proc more than Str or Agi, Like i mentioned on Rawr discussion page, this is probably due to RNG, but it would be nice to see it be the most active proc. Agi seems to be the lowest which is also good. I havent been able to find a good way to monitor the different procs though and im too lazy to try to do it manually