Originally Posted by
Tarm
I did a quick test in SimCraft (simc-602-5-win64) with my 587 moonkin using a mastery-heavy reforging and Incarnation for a few different fight styles (450 sec fights, 20% length variation, 10000 iterations):
Patchwerk, 1 target
JS 18553
WS 18561
Patchwerk, 3 targets
JS 30658
WS 30632
Heavy Movement, 1 target
JS 14412
WS 14419
Heavy Movement, 3 targets
JS 28442
WS 28412
They are statistically identical in these sims. The 95% confidence intervals were overlapping in each test. They are so close that at first I was suspicious I entered something incorrectly, but if I look at buff uptimes I definitely see Jade Spirit in the JS sims and the three Windsong procs in the WS sims. (Jade Spirit uptime is 42% and Windsong uptime is 16% for each of the three procs.)
However, Windsong will become worse and worse relative to Jade Spirit as you level up and rating conversions devalue the stats from Windsong. So if it is a weapon you will use while leveling, you might as well go for Jade Spirit. (The overall proc rates may decrease as you level too, but presumably they will do so at the same rate. I'm not actually sure how that works.)