When use "Direct Delta", "Queued Delta" and "Unserialized V3"?

Hi, I saw here a loot of threads asking the diference between these update methods.

But my question is simple, When I use one or another?

Like, Direct Delta I can use in real time data aquisition! (it´s just an exemple, i do not know if is possible).

But to clarify the question of the use of this methods, some exemples of when is recommended to use one type or another will be very usefull.

Thanks