I prefer 'left-hand-front' routing because 'right-hand-front' means the cable has to turn back toward itself (for the majority of calipers) and just doesn't look right to me
Left for front gives the cable a nicer swoop down to the caliper IMO
True grit by my hero Phil "The Engine" Bayton............showing that the Holdsworth mechanics knew a thing or two about cable routing. Slightly different pose to the Cannibal LOL
Ah but as others have said with non areo levers front left does give a better look
I think for me I am going to go left rear as its more common in uk, same as my mtb and same as moter bikes .. So all in all its the safer option for me and any one else that happens to ride it