Sand to Snakes 2:25
Leaf to Snakes 1:57
Mist to Snakes(running) 6:18
Mist to Snakes(boat ride) 7:53
Good example is doing 40 arc and dying-- to a player or npc it doesn't matter, because it just flat out takes longer to get back to complete your missions over leveling for another faction. Hence why Mist Ninja go rogue
(I wish it was not this way, but it is)