tower 2 is the only building that you have a few more steps than the others to the water taxi.
tower 1 & 3 are both withing a short walk to the water taxi.
if you are in one of those 2 buildings and near the elevator, it is a short walk to the dock.
if you want to walk to the park, it could take you about 10 minutes if you go at a slow pace.
i could stay at either building and not have an issue reaching the water taxi dock.
i always have a room near the elevator.
i have read of some that have rooms near the stairs and state their walk is longer that way.