I loved the Two Tone revival although my favs were The Beat and The Selecter at the time rather than The Specials and Madness. I don't know how many times I have seen The Beat and I notice their back catalogue has just been re-released.
The Beat and The Selecter seem to have been forgotten about as when early 80s Ska gets mentioned it's always Madness and The Specials as though there was nothing else.
The Beat and The Selecter were great. They had a faster more 'punkier' feel, even though The Beat were a bit more 'poppy', if that can be a word.
The Beat especially were very big at the time and possibly had as many or more hit singles than The Specials.
People tend to mainly remember the hit singles of all these groups. Because they were groups then, not bands.
But many of the album tracks by all these acts were very interesting.
Stand Down Margaret by The Beat and Man at C&A by The Specials are two album tracks which spring to mind from the top of my head.