Using OME to update via DRAC only vs O/S and OMSA

Hi,

Is it better to use OME to update Windows clients via the O/S (with OMSA installed), rather than through the DRAC only?

I have noticed that during the past 12+ months that OME has not been updated, but OMSA has a few times. I am guessing that the O/S via OMSA is the preferred method  to update servers, but I just want to check.

Thx,

John Bradshaw