If you could have an unfinished book or saga to instantly be finished, which one would it be?

Personally it's hard to decide. I've been waiting for ages to read the Kingkiller's Chronicle, but until DoS isn't out I don't want to start it. Also, I'd love to read the full Empire of the Vampire saga and having all the Stormlight Archive out to read instantly would be nice, so I can't chose between those 3.