Gear Choice

What is your go to set when it comes to pve as a end game player? I'm fond of new gear coming into the game and both the latest sets from Valentines are really appealing both visually and Stat wise. In your opinion what is the best set for each class. I'd like to see the forum discuss what gear you prefer and why.

Speed set, arc ring, planar pend, arcane pend, Valentines set, nightmare set etc.