If memory serves, they are the only team with a record over .500 vs. the Yankees. Pretty damn impressive.
The Angels may or may not have better team on the field when they matchup against NY, but you can sure as shit know Scoscia has them prepared and believing they are the better team.
The Angels have also been the only AL team that seem not to have feared the Yankee mystique the whole time. With the Red Sox they did right up until Game 4 of the ALCS when their belief that they were already dead and every game from then on was a gift overrode their fear.