Originally Posted by brunning
use a decent chain and keep it lubed, noise won't be an issue.
really though, use either. 3/32 is not going to break when skidding or anything. as posted above, it's been shown that chains, when assembled correctly, are almost impossible to break in any bicycle application.
cogs and chainrings are made in both widths, but i use 1/8 because 3/32 cogs and (especially) chainrings in common fixed/track sizes, 47-50T, can be difficult to find in 3/32.
+1 on the chainrings. i only run 3/32" now because the chainrings i own happen to be in that size. but that's a good point.
then again, my chainring is also under 47t.