Most of the SA teams have a few problems, especially in a season where the availability of quality replacement players in all positions is going to be extremely important. The coaches are going to have to regularly rotate the players to prevent burnout and injuries are going to be high.
Heres my opinion :
Bulls : forwards will do well, a very exciting looking backline, although some inexperienced players.
Stormers : look very good on paper, but might have depth problems, especially in midfield.
Sharks : Especially weak midfield with the better players watching from the sidelines. Their forwards look good and they have a replacement front row who will give the first choice a run for their money
Lions : good starting team, not much depth
Cheetahs : good starting. Team, not much depth.
I expect the Lions and Cheetahs to start well but fade after injuries and player burnout take their toll.
My 5 cents worth!!!