With both I don't think it's too hard. You've got creators or premises that intrigue you, and the buzz is usually deafening for the best stuff. If you require more entertainment beyond that then you have too much time on your hands.
Edit- "What's good" at image is easy. Look for the names Millar, Brubaker, BKV, Azzarello, and Rucka, and that's the good. This hasn't changed in 15 years.