Not voting as the choices are odd to me.... i.e why lump mechanical disk and rim???

i don't see why any of these technologies would not work for commuting or travel

Key to commuting is being able to handle any issues your self, so if you know how to work on the tech, you should be fine.

tire and tire technology selection is probably more important than shifting and braking choices

I have historically commuted on my nicest road bike.....because it puts a bigger smile on my face and is more efficient for longer commutes. and made sure my latest bike had a rack, as a prefer not to use a backpack

I am all mechanical (indexed and friction) and rim brakes, but have nothing against electronic and disc...and could well have them on a bike some day

my commuter and do everything (because not enough bike pics in General)