Will add more as I think about it :)
I dislike:
Floating points,
Zillion-billion point cues,
STAINED WOOD,
Inlays not lining up,
Raised finish/rings,
Huge bumper cues,
Stupid coloured wraps,
Tulipwood and Bocote (99% of the time),
Flame veneers,
Ugly and large signatures,
Scrimshaw done bad...