What's The Best Search Preference?

So When I Play Halo 5 Gaurdians Sometimes I Wonder If Balanced Or Focused Is A Better Search Preference And I Notice That It Takes A Lot Longer To Find A Game In Focused Than In Balanced And Also In Focused I Notice That I Suck Because Everybody Ends Up Killing Me More Quickly And Then In Balanced Everybody Just Goofs Off So Does Anybody Know Which Search Preference I Should Have That Would Better Suit Me?