The main difference between this seat and the other two mentioned is just that it doesn't also have the miles and miles of humdrum postwar suburbia that they have courtesy of being on the edge of the conurbation.
True. WBW includes some rather old Black Country towns like Wednesbury, Tipton and Oldbury, and included in this is a lot of old industry and a fair stretch of the Birmingham Main Line Canal (both old and new lines). There is quite a lot of C19th housing, and some C18th as well. None of which means that it's an especially beautiful part of the world - a lot of it is run down and quite bleak - but it's a lot more interesting in terms of history than you might think.
Surprising the Conservatives got so close in Walsall South in 2010. 2015 and 2017 were easy Labour holds.
Well I am sure it had nothing to do with a well regarded and long term incumbent Labour MP standing down in 2010 and being replaced by someone who at the time wasn't a universally popular choice among some key sections of the Labour electoral coalition.