I'm a big fan of the low Q and overall looks of TA pro vis 5 and Stronglight 49D cranks (and the Nervar variant, too). I have them set up in a variety of ways, but my two favorites are the 46/42/28 TA triple on my Ebisu and the 44/30 Stronglight 49D on my '71 Raleigh International. I find that a primary chain ring in the neighborhood of 44-48t and a rear 5 or 6 speed block with a wide range of cogs give me just about all of the gearing I need.
Neal