I'm torn between picking up either a NOS Campagnolo Victory crank set or a NOS Campagnolo Athena crank set. I'm leaning towards the Athena, as it's a little more recent and possibly a little bit better quality (correct me if I'm wrong). But, I can't figure out what the correct spindle length should be for the bottom bracket. Anyone have any idea what the spindle length should be? I keep seeing references to either 111mm or 112mm.

BB spindle was 111 mm for the Athena double, 115 mm for the Athena triple. Both end caps of the Athena BB are adjustable, so you can trim the chain line a few millimeters either way.

I tried posting awhile back and it didn't work. Wim is right, 111mm and 115mm. The modern Centaur square taper will work.

Athena is definitely a step up from Victory. Athena became Daytona, which for "copyright" reasons, then became Centaur.