I'd like to know which class can travel the fastest.
You know when you cleared one side of the map, going back, or also avoiding white trash mobs.
An obvious guess would be wizzard?
But I never played anything but my trusty barb.
Thus I need your advice
You don't need both Suppression Fire and Preparation but one of them is mandatory if you want to travel far. Preparation is the safer option. But Suppression fire will give you a full discipline bulb in a couple of shots in some situations so having both is not that bad.
Nice, then there's pretty much no contest I think.
I can tell that barb is not that fast. Sure sprint is nice but it costs hellofalot fury and through all the empty passages it doesnt help you. Leap is nice for the occasional shortcut though.
I remember a witch doctor build from a couple months back where someone used a combination of spirit walk, and hex w/ the angry chicken rune and a few other things to get around double run speed almost perpetually.
I have not tried this myself, and doubt it would be viable in harder difficulties, but if we're just talking theory then maybe WD could theoretically be fastest.
Sorry I couldn't find the link to the thread I'm thinking of.
In regard to the op's question, as long as there are destructibles and left over mobs littered along your path, DS with the 25% speed increase will move across a map pretty damn quickly. Otherwise, it doesn't help much.