Starkeeper,
I agree that some is boring and lacks melody, I couldn't tell you any artists names off the top of my head, but I've hung out with friends who listen to dance music, and much of the music they played had melodies as well.

Possibly some of the makers focus more on the beat, and others focus on a strong beat, and melodies.

Squeak
_________________________
GEAR: Yamaha MOXF-6, Casio MZX-500, Roland Juno-Di, M-Audio Venom, Roland RS-70, Yamaha PSR S700, M-Audio Axiom Pro-61 (Midi Controller). SOFTWARE: Mixcraft-7, PowerTracks Pro Audio 2013, Beat Thang Virtual, Dimension Le.