Depends on class and their movement options. Combat rogues with their ranged slow are probably never gonna use the 2% movespeed. Assassination rogues without a slow may want to keep the movespeed, or really go full damage and hope to kill someone so quick it doesn't matter. Warriors without a slow are very easy to kite...could go with movespeed to avoid being simply walked away from. Or go pvp power to hope to kill the target before you get conc shotted.
If you skip the movespeed to cloak, you can also get 2 primary stats from switching away from minor speed. So for rogues, you're gaining 2 agility from boots too.
Healers I'd say get the movespeed and verse. Druids its up in the air since they have 150% travel form without the cloak and 152% with it - but the verse is nice.