A plain blank with subtle highlights for the whipping and a full cork handle is my preference.
As for actual rods.
I like the shimano technium rods looks, a nice glossy blank and subtle logo in silver- no full cork though.
I also like the early fox duo-lite .75lb avon rod in green with carbon effect reel seat, shame the float rod is an absolute dog.
Similarly I like my matchpro rods, nice cork handle with a subtle 'onion' swell at the butt.
The tackle boxes own DV rods are quite nice with their green whipping.
I remember some truly garish rods in the 80s and 90s, also the vertex range with their overdone blue colour but times change I suppose.
Also practical they may be but I wouldn't want a rod with a Wye style butt cap.