I've not really "prioritised" anything myself (barring my vanya head where ive chucked det+sp into), just been grabbing whatever ilvl90 I can get hold of.

my T4 experience has been somewhat limited so I've not had many "spam heal" situations yet have had a fair amount of idle time where I've been switching to cleric stance and getting some dps in (not really needed but I do it in T1+2 and in my titan sell runs).

I really quite enjoy whm dps tbh, as limited as it may be, so I've gone for det just for an overall heal+dmg boost.

Does sps affect dot timers btw? Considering I rarely get more time than enough to chuck up aero 1+2 and lightning 1 before switching back to heal (and then reapplying dots when I switch back) I can see sps not really helping me on this side of things.