I'm doing my first bike build; a Surly Cross-Check. I'm only agonizing over one part choice, the front brake cable stop. Brakes will most likely be Tektro Oryx cantis; fork is standard Surly cro-mo.
Option 1 - Steering tube mounted:
Option 2 - Fork crown mounted:
Option 1 seems to be most typically used, is available in black (which I'd prefer), and would look cleaner IMO.
The only reason I'm considering Option 2 is that I've read all these horror stories about problems with cantis squealing and/or chattering, and some have said that a fork crown mounted cable stop solved their problem. I don't really like "the look," and I have some concern that any loosening of the mounting nut (although it appears to be a locking nut) could cause a loss of front braking.
OTOH, I don't want to build it up using Option 1 only to have problems and then have to rebuild with Option 2.