FF14 is a game that is decidedly better in WoW in some ways, and absolutely worse in others.
The questing is very “old school” and can be very annoying. Go all the way over there, talk to this NPC, now come all the way back, go back to that same place, have an enemy encounter, and return to the other place again. Now, travel to 3-4 different cities, talk to one NPC in each, then come back.
There is a LOT of dialogue and a LOT of cutscenes. If you’re someone who ignores most quest dialog, you’re likely not going to enjoy FF14, and you’ll be doing a lot of clicking to advance past the text. The problem is, you’ll quickly find yourself confused by what’s going on if you do, whereas WoW’s story/lore is “simpler” to skip but catch-up on later.
Combat is very flashy and relies mostly on combos. Transmog (glamour) is a big feature that is, unfortunately, clunky, overwrought, and decidedly worse than WoW’s transmog system, despite having fantastic weapon, armor, and enchantments. I’m told it’s because of “old code” they have yet to figure out how to fix.
I will say that certain beats of the main story are interesting and compelling. If you’re someone who criticizes WoW’s continuing foray into “cosmic lore”, you’ll probably really dislike FF14’s main story.
It’s not a “WoW killer” for me; I much prefer WoW overall. But FF14 is a fine game in its own right, and is an excellent “gap-filler” during the WoW doldrums we experience between patches.
I do hope the devs crib a few features (like UI customization, i.e, “unprune” the UI) from FF14 for the next expansion. Also, being able to do everything on ONE character appeals to me greatly, and I wish WoW had something similar instead of maintaining alts.