The circular has an advantage if you use a dust collector. It also is a little nicer to handle. The advantage to the 1/4 sheet is that you can get standard sheet sandpaper cheap and you can get it anywhere. The hook and loop pads are more expensive and a bit of a specialty product, although getting more common every day.

The brand I would choose first, of the ones you listed, would be the Porter-Cable or the Bosch. The last I would choose would be the Makita.

Good luck,