Camelopardalis is possibily the most "transparent" of all constellations along the galactic equator, but has two of the loveliest deep sky objects you can see with a small scope - Kemble's Cascade and NGC 2403 (along with NGC 7331 the best looking of all non-Messier galaxies in the northern hemisphere)
NGC7331 is in Pegasus, and it is amazing--just a field away from Stephan's Quintet.
For me, the most impressive non-Messier galaxy is NGC253 in Sculptor.
But, overall, my favorite constellation is Sagittarius. My observing log has 229 Objects there and I have barely dipped into what is visible and haven't gone much below -35°
My log contains 709 objects in Virgo, so obviously I have spent more time there, and there are a lot of impressive objects there, but Sagittarius has the most astounding part of the Milky Way
plus every type of deep-sky object there is, so it gets my vote.