Jupiter is very low this apparition for southern hemisphere observers which means it is badly affected by atmospherics, Saturn and Mars should be very nice this time around as evidenced by the quality of the images being presented here on IIS.
Clear views of bright objects like planets can be obtained in a number of ways. I have used dobs mainly as mentioned earlier and aperture is definitely an advantage. Last March I had my first good look at Saturn with my 20" and the memory of it is burned into my brain. The Cassini division in the rings looked like it had been drawn with a black texta and there were moments when the Encke div was clearly visible. In my old 12" the Cassini was only occasionally glimpsed. Aperture allows you to push the magnification higher to really take advantage of the seeing when it is at its best.
Malcolm
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