My DS11, now in 6th grade, enjoyed being in Cub Scouts from 1st grade to 5th. Our pack had really great and involved leaders. My DH is the "sports coach" in the family/area so it was nice for my DS to be led and guided by other male figures for once. DS decided not to bridge to Boy Scouts because of the time commitment in middle school but I am very happy about the experience he had up until then. Lots of varied activities and stuff we wouldn't have done otherwise because we are not a very "camping" type family.
Good luck with your choice!