However there does seem to be a pattern of regressions in apple’s products (i put on hold buying a mac pro simply because its specs are very low for the price, the gap being much higher than usual).
What i would do is ask employees what they prefer. Accounting might favour windows, while developers or sysadmins might prefer linux (let them chose the flavour). If your company is non technical the windows might be the only alternative. But either way, breaking away from a single vendor is a good idea.