For me it will not be surprising if Pakistan beat thier opponent with a lead of 2-1 or something around it while on the other hand no doubt Afghanistan will have upper hand on Zimbabwe because of thier player potential and experience while in Aussies series things are very unpredictable but looking to recent performance I think Australian will have dominance over thier opponent.
Pakistani team had terrible start of first test, four wickets have gone done in first 19 overs. With this start it will be difficult for Pakistan to make a comeback and save this match. No batsmen so far is able to make it to twenties. SA made a good decision of batting first after winning the toss. I haven't see the match so can't say much about the pitch but all four wickets were picked by pacers so far. Pakistan need some batsmen to stay on the pitch and score some runs else if wickets keep falling like that then Pakistan first innings total may be restricted to 150.
The match between Pakistan and South Africa is more important for India than both of the teams because if Pakistan lose the game then South Africa will rise in the table of test World Test Championship and at the same time if Pakistan wins it, then India will get good advantage and they will rise in the table while the match also in progress between India and Australia.
Today there are three test games Zimbabwe vs Afghanistan, Pakistan vs South Africa and the last match between Australia and India it is very important game for India and same as Australia. Australia are looking good in that match.