It's probably unnecessary, but I can only agree that White Mage tends to be the easiest to get into.

White Mage gets mentioned more since the players seem to feel it has the least issues out of the 3. It's not so much that they can't do their job right. All 3 can do good healing when the minor patch buffs came in.

For Scholar, the main complaints are more pertaining to the players feeling bored with the DPS rotation. For the most part, it's Bio then Broil / Ruin spam for single target and just Art of War spam for AoE. White Mage does have equivalent spells, but they also have a Blood Lily system added into the mix at high levels. The Holy AoE also stuns enemies and looks way more flashy than slapping the ground with a small explosion. Art of War is instant cast, but still . . .

For Astrologian, quite a bit of players don't like the new card buff system and prefer the old one. I feel neutral to it since both systems give cards you don't need when Lady Luck decides to troll you. I still have moments of redrawing three times trying to get that last different seal only to convert it to Lord or Lady. There was one time I had to say screw it and just settle with a 4-5% Divination since it's better than 0% for that Main Scenario "final boss". He would have been dead by the time I waited on the next card in 30s.