Many people thought Stealer's Wheel was Steely Dan and I would wonder if they were formed to ride the Dan's coattails.
Macarthur Park was written by Jimmy Webb who wrote hits for Glen Campbell including By the Time I Get to Pheonix and the classic Witchita Lineman, which everyone did for a while. He also wrote the Worst that Could Happen for The Brooklyn Bridge. He wrote this gem, The Moon's a Harsh Mistress. he is a master of the aaa form
Another song that many have done including Joe Cocker, Linda Ronstant and now Celtic Women. I first heard it from Judy Collins on her album, Judith, back in 1975. It's kind of strange that so many women do it because it is about a man who loses love. But maybe there is another take that I am missing.
Another song that I like was Looking Glass's Brandy, which the RHCP covered on their last European tour. No one knew the tune, or got the joke, because it never charted in Europe. I've never heard of those Aussie bands. Some of it is very post-Woodstock. Jeff St. John in a wheel chair, and is that a chick on drums or is it the drummer from Angel?
I can't believe that you never heard some of those tunes, Hall and Oates, Michael McDonald, Chaka Khan, they had to chart in Oz. Here's another one everyone did, by Eugene McDaniels, Compared to What with Les Mccann & Eddie Harris.