As a youngster in the early 1970s, I was aware of The Sweet (or just 'Sweet') but there was nothing in their music or image that appealed to me. Years and years later, and inspired somewhat by the enthusiasm for them from two or three friends, I find myself re-appraising them and finding much to enjoy. They were labelled 'Glam Rock' - which undoubtedly they were - but this seems to have been a bit of a compromise in order to get the big hit singles, based upon the evidence of songs such as Hell Raiser, Turn It Down, No You Don't, Sweet F.A. and Burning. I'd say that they were far more of a 'metal' band and certainly their influence on bands such as Kiss, Motley Crue and Def Leppard can't be denied.
Speaking of influences, I can't help thinking that at least one or two members of the band must have bought Jet and Tony's version of The Man With the Golden Arm, as it otherwise seems an odd choice.
https://www.youtube.com/watch?v=ysCA0cRXFLo
I've also felt for a long time that, although they didn't write it, The Shadows must have based their arrangement of Love Deluxe on 'Love is Like Oxygen', which had been a huge hit at the start of 1978.
https://www.youtube.com/watch?v=tXJ4TZSXtzc
(Even the promo video looks similar!)