Heya Boatboy50
It kind of depends what you like mate. For peace and quiet Amity or Flinders would be my choice, or if you prefer a little bit touristy then Point Lookout. If you are taking a family with kids one of the houses backing onto Flinders beach is good, there are easy walkways down to a usually fairly safe beach, fishing can be hot or cold though. I think... Raine and Horne at point lookout handle most of them. Straddie Realty at Amity handle a lot of Amity houses.
Must sees... umm I like to see lots of water and animals so an early drive along main beach down to the pin throwing a line in along the way usually has the roos up on the dunes and eagles wandering around.
I was over there on Monday and the gutters were very ordinary, what I call bream gutters almost the entire length till you get well down the pin where your option is then open water. Hence I cut my run over there short.
A trip up to the point (lookout) to have a look off the headland back toward Amity and Moreton across to the group is good. Further along the SLSC to peek at the gorge and down along main beach is ok as well. There are walks arond the headland areas if you into that or a wander down onto the beaches might show up a few white pointers as they seem to school up this time of year.
For more touristy type stuff grab one of the brouchures from the barge office, they will point you in the right direction.