I actually enjoy Mark Hunts, my problem with how they've been dealt with is that SE has made them the primary "optional" content. A few optional dungeons, an annoying mini-game to belittle or two, as well as just a bit of extra content to spice things up should go hand in hand with the Mark System. The Mark Hunt system only feels weak when its the games main attraction. Yet I still feel its a good system cause genuinely these optional boss battles allow the player to really play with the battle system more and get the most out of it.

My other issue with the Mark System is that I feel if your going to have it, don't leave it until the end. I feel it worked well in XII cause I could sign up for some optional battles and do them on my way to the next story point. Leaving them til almost the end like X and XIII did just makes the system feel tacked on and I generally feel cheated cause I have to wait 30+ hours to get to the major game content.