Originally Posted by
Torty
Mythic 2/2 upgraded tier chest
+444 Intellect
+372 Haste
+220 Mastery
Mythic WF 2/2 upgraded tier chest
+470 Intellect
+393 Haste
+232 Mastery
-23 int -21 haste -12 mastery vs 75 haste.
-23 int -12 mastery vs 54 haste.
Intellect needs to be almost twice better than Haste in order for WF to be better than socket. Thus, the socketed version is better and it's not even close. And that's our item with the best stat budget and stat amount. The difference in favor of socket is even bigger for tier headpiece and legs since they are itemized much worse than chest.
Always pick WF for weapons or trinkets and always pick socket for everything else as a Resto Druid in HFC (assuming 75 haste gem). The math is really simple.