Most popular, and most useful, oaths that Space Marines make

By peterstepon, in Deathwatch

What are the most popular oaths that Space Marines make to make use of Squad based abilities, and which squad based abilities are considered the most useful for a squad of marines?

peterstepon said:

What are the most popular oaths that Space Marines make to make use of Squad based abilities, and which squad based abilities are considered the most useful for a squad of marines?

Regroup. Fire For Effect. Squad Advance. Tactical Spacing. Furious Charge. Strongpoint. Fire Support.
Also: Lead By Example (just to good, remember that the Ultra needs to allocate the re-roll on his turn and not as needed - to maintain game balance), Holy Vengeance, Sustained Suppression, Lightning Strike. Immovable Defence and Rally Cry.

Codex abilities are imho a bit better for defensive stances, chapter abilities seem to favour attack patterns.

Alex