I think The Wings were the 2nd most successful singles act in the uk after status quo in the 70's..
Now I've read somewhere (hopefully accurate this time) which claims McCartney/Wings was #2 most successful in 1970s U.S. charts according to Billboard. #1 was Elton John (or Bee Gees, those hacks.)
Maybe I should shut up now. Cue Geoff smartass remark.