It is predictably unpredictable to say who will struggle. Pre-season, who would have thought that Dundee United or Hibs would have been in trouble the years that they went down. Rarely do the favourites for relegation end up at the bottom.
Kily look like the favourites for now, so they will probably survive. I think we have 4 teams who will be cast iron safe (OF, Aberdeen, Hearts), so perhaps Saints, Dundee or ICT should be worried