MND > Crit > DTR (or DET whichever abbreviation you prefer) = PIE > VIT > STR > DEX > every other stat > SpellSpeed..

At the current equipment level you can't stack spell speed high enough to make any significant differance in HoT ticks ( at least thats my opinion^^).

On a side note: No, I dont prefer STR, DEX over SpellSpeed, it's just an hyperbole. Just to prevent dem " OLOLOLOL LOOK DIS N4P HE GOING STR WITH HEAL"... xD

P.S.: havnt heard much positive resonance of DTR as well, apparently no good calculation. (At least @ 180 - might change later on).