veryRWE,
Thanks – those were good. I never flew combat SAR, or the H-47, but some things to consider (in my opinion):

Most of the time, smaller is better. Quieter, harder to see, more manueverable,smaller landing sites. And the great majority of these rescues are not for large groups of people. Being able to carry extra troops on board can be beneficial, though.

Range is very important.

Speed is important.

Ability to operate at high altitudes (i.e. mountains)/very hot weather (which has the same effect on helos).

Twin rotors have some inherent advantages with not being as limited by the direction of the wind.

Downwash is an issue.

From what I know (and I have not paid especially close attention to this competition) the H-47 does very well in the range, speed, high altitude, twin rotor areas. Downwash and size are weaker areas.