WoW has pay to win Token, everything can be bought including boosts, raid boosts, achievements, pvp rank, arena boosts, mythic keys, mythic raid loot. There is no way to differentiate your accomplishments with someone who swiped their card.
WoW guilds get early access to 'raids' for esport shit, you will never compete with them and you will never kill anything before them.
WoW content is all datamined before release.
FFXIV has zero p2w and regularly bans users weekly who RMT. (the buyer of the gold AND the seller is banned, all trades are reversed.)
FFXIV bosses absolutely destroy anything WoW has ever created, it doesn't even come close.
FFXIV has no addons, 3rd party tools are banned, guilds are banned for using them 'live'.
FFXIV has no esport, and does not support any esport.
FFXIV does not release content early or datamining for anyone, everyone gets access to the content at the same time.