Having lived at 53'N and 33'S, it's actually a tough call.
The quality of the skies is better down here; less LP, and steadier seeing.
However, both hemispheres have their showpiece objects. M101 is stunning. And M31 rises much higher in the N than it does here. Cassiopeia and its myriad clusters and nebulosity is great (and high) to image. For an imager, object altitude wrt to the horizon is so important for good sharp shots.
But there again there are no LMC and SMC up there, or Eta Carina...
Conversely, if you like viewing or imaging Galaxies, the N is the place to be.
Oh, and a quick polar align is a whole lot earier in the North
Regards,
Rob