I don't care to argue about PC ports being worse now or not, but why would you choose that disaster AC Unity as a good example?
AC Unity was only horrible on release (although I played it at 1440p ultra quality 60 FPS from the get go). The patches eventually fixed most of the problems on PC.
For the consoles (the PS4 in particular), the low frame rates were never fixed.. Plus you're locked at 900p..
All in all, AC Unity is a much better game on PC than it is on the consoles..