It's been a while since I last heard term "office automation". It was used to define such common office equipment as PCs and printers, faxes etc.
So, if this is what you use it for, then in "normal" office neither cable you've mentioned will be the best. The best for many reasons will be 4 twisted pair cable, Category 5E or Category 6. These types of cables give you most flexibility to connect devices that you can come across in a regular office. Even traditionally "coaxial" applications, such as CATV or CCTV, can be adapted to run over twisted pair.
Dmitri Abaimov, RCDD