It doesn't matter either way. Internal cabling has no practical benefits over traditional cabling- it's just an aesthetic thing- strictly for looks/fashion; a gimmick. And it just makes life more difficult when you need to change a cable. Bicycles are simple machines. They were perfected decades ago; the marketers keep coming up with new gimmicks and adding new technologies which often add nothing to the cycling experience (and often detract from it) just to have new features to tout, and to try and shame the fashion-conscious into buying the latest bikes.

So choose what you like. If you do your own maintenance and repair, the internal cabling will prove to be an unneeded headache, especially if you plan on keeping your bike for many years.