There is no such thing as "better" when it comes to the U.S. military, only better suited. If the mission is to take an airfield you send in Rangers. Urban covert insertion, you choose S.E.A.L.S. or Delta. Say you have beachhead and you need the current topography or you need to clear an undersea mine field, your obvious choice would be Force Recon. It should be noted that Force Recon is the mother of ALL Special Forces teams. Navy S.E.A.L.S were originally developed and trained under their tutelage. Hollywood has a tendency to only glorify Delta and S.E.A.L.S. The only movie, to my knowledge anyway, that has given Force Recon much attention is "The Rock". All the Special Forces kick ass in their own particular way. As we used to say, "high speed, low drag".