Sheffield United, Cardiff and Reading all have a chance of promotion either via the top two or the play-offs, while Burnley look to be battling it out with Swansea and Preston for the final place in the top six.
If Blues were to join Wolves by sealing automatic promotion, it would be the first time since 2005/06 that three West Midlands teams had been in the Premier League together.
McCarthy said: "I don't give a monkeys who comes up, not in the slightest.
"Why would I? Nobody gave me any grace and favours when I went to Reading, went I went to Birmingham, Sheffield United, none of them. So let them all get on with it and see who can do it."