What type of chain lube is best for winter riding? I've read a lot about wet vs dry chain lube and there doesn't seem a definitive answer on whether to use wet or dry chain lube in the winter. Some forums are full of people saying they only use dry lube because it doesn't wash off as easy, then other forums are full of people saying the opposite, for the opposite reason!

What type of chain lube is best for winter riding (water, gritted roads etc)
Personally I would go with the finish line wet as opposed to the dry. 

Typically I use the dry if I want something that will keep my chain looking clean as well as lubricated. From personal experience I have found that I need to reapply the dry lube more often. 

I will use a wet lube, sparingly mind you, for the nastier conditions. 

Having wasted your time with that I would say that storage temperature/location, how you clean the chain (method, frequency and intensity) and how you apply the lube (gobs vs. sparingly on each link) is more important than the type of lube.