Thinking about it, the whole of the Argyle Line between Newton and Anderston would probably qualify - Newton I've done, but:
Cambuslang has those awful reconstructed stone retaining walls, ramps and wire fencing, makes you feel like you're being herded towards a concentration camp - the gravestones in the adjacent stone mason's yard don't help either!
Rutherglen has that hideous orange plastic perspex bridge and station, especially smelly on a hot day.
Dalmarnock appears to serve nothing much more than industrial wasteland from a cutting which has mysterious orange slime oozing out of the walls. I only hope 2014 sees this being given a serious spruce up!
Bridgeton depresses with that filthy big sign made up of individual letters and the general environment it deposits you into at Bridgeton Cross, although I suppose that's not the fault of the railway - hopefully Bridgeton Cross and, especially the approach to it from Dalmarnock Rd will also benefit from 2014. Not to mention the flags and other sectarian bullshit visible from the platforms round about the marching season.
Argyle St and Central look absolutely manky and dated, despite refurbishments in the last ten years or so - especially the former, the bit under the platforms astounds me with how terribly the materials used in the refurb have aged so quickly!
And Anderston - well, if ever a station had an uphill battle against its location, then sitting in a traffic island under a huge motorway flyover is surely the top trumps of shit station locales.
Sigh, no wonder I drive to work these days!