This may sound a bit odd for such a small detail - I think one of the reasons Campag looks better on older bikes because the cranksets still retain a traditional looking hole in the centre of the crank whereas shimano have that alien like one piece job which just looks a bit wrong. Campag's silver is a pretty traditional affair whilst the silver of Shimano components tend to be more of a blue/grey hue.
Also, the Campag ergo levers are a much more classic shape, whereas the Shimano one's are just fugly.
Heres a picture illustrating my points (though admittedly not a properly vintage frame)
This may sound a bit odd for such a small detail - I think one of the reasons Campag looks better on older bikes because the cranksets still retain a traditional looking hole in the centre of the crank whereas shimano have that alien like one piece job which just looks a bit wrong. Campag's silver is a pretty traditional affair whilst the silver of Shimano components tend to be more of a blue/grey hue.
Also, the Campag ergo levers are a much more classic shape, whereas the Shimano one's are just fugly.
Heres a picture illustrating my points (though admittedly not a properly vintage frame)