Well then in that case, walking. You have to set up a backflip (which would be too slow anyways) and a sidehop which would take longer than just walking then sprinting again.
There are times that you run out of stamina so instead of walking to get stamina back I would side skip or back flip.
I just tried it out and walking was definitely always faster. Side hopping was too inconsistent and walking seems to be more effective.
