As others have said, alot of it is mostly personal. If you're out to make a buck, you might want to sell the minors to other players while they are somewhat hot, if they even still are.
I completed a set or two during the first edition of the event. Outside of that, personally, I really like the Exiler. The Do comes in handy for non-maxed Warriors. I like the black tome(spell book). The gloves have come in handy for my mages. 1 set of Swords/Urn is nice for deco, even more so if you like the name enough to create a character with that name, though having an Urn while the character still exists might be a little awkward...
Having those already I am really only trying to accumulate some dyes. I like the Browns and the Silver. I'm not getthing those drops too much. I'd like to find a couple people on Chessy that would like to trade for those colors. One for one, whether it be another dye color or another tomartie to turn in.