Summary:
This entire convo & conversation isn't going anywhere, when do these suggestions/debates ever result in anything affecting the game?
Controls:
Just like FFXI, the game is obviously better setup for gamepad use, F8 is the middle of the keyboard, I'm assuming that's the default target key? I never used it. But that's obviously not setup for convenience, place your fingers on the keyboard and see how much of an overreach F8 is. The game's keybinding requires total remapping, it was such a pain in the ass I couldn't bother remapping more than a few keys, total waste of mouse that has more than 4 buttons for the effort/time.
THUS! Game was better designed for Gamepad/Console(PS3).
PvP
Mouse/Keyboard vs Controller + keyboard - Those who have pvp'd on PC games can quickly come to conclusion using 2 hands on gamepad to switch to keyboard is going to be an issue.
THUS! PvP will NOT be the sort of PVP most of pvp'rs want. In any case, Final Fantasy should fix their boring boss mechanics 1st before. FF is 1stly a PvE game & if that ain't right then nothing aint right.
Flying Mount(s)??

If the ahriman mount is a ground mount w/ flopping wings.. The one so many want.. that, IMO, is gonna look Sofa-King-WE-Todd-id.
Directional combos = Whats the point? It's not like they are god of war combos.. where you jump on the mob's head and rip stuff apart. Bring back spike flail and let's see how directional combos work.. Bosses that actually require positioning/movement.