With each new step, SE seem to succeed at making the community hate certain content.

Atma: Community loathe FATE's (more than they already did)
Animus: Community loathe FATE's some more (it was almost as if SE learned nothing over the whole Crystal Tower FATE fiasco). Also had to do dungeons, but those were a guaranteed 'drop', unless you KO'd on boss death.
Novus: Spirit Binding RNG! and then SE changing the SB rules so that i90+ gear no longer guaranteed Rank IV materia. Also required you to run through Expert Dungeons, but was a guaranteed drop.
Nexus: Light farming Primals. I'm sure most of the community are sick of Garuda and Moggle Mog HM now.
Zodiac: RNG in dungeons! Although not as low as Atma, it's still RNG and you will absolutely HATE certain dungeons by the time you're done. Also Crafting and Desynthing, if you're able to.

That about covers everything in this game. SE have successfully made anyone doing the Relic quest line (especially the unlucky ones) loathe pretty much the entire game.