expand_less Tier 0: Nothing (no published class is this powerful, but they can be with certain builds like a practical painter wizard)
Tier 0.5: Sorcerer (Razmiran Priest)
Tier 1: Arcanist, Cleric, Druid, Psion (w/ Psychic Reformation), Wilder (w/ Psychic Reformation), Wizard, 
Tier 1.5: Bard (w/ Music Beyond the Spheres), Oracle (Spirit Guide, w/ Dreamed Secrets, Ancient Lorekeeper), Psion, Psychic (w/ Mnemonic Esoterica), Shaman, Skald (w/ Music Beyond the Spheres), Summoner (Blood Summoner), Witch
Tier 2: Harbinger, Mystic, Oracle, Shadow Weaver, Sorcerer, Summoner, Wilder (w/ Student's Surge, Human FCB), 
Tier 2.5: Aspect, Channeler, Inquisitor (Monster Tactician), Occultist (by Radiance House), Psychic, Rajah, Spiritualist (by Drop Dead Studios), Stalker, Voyager, Wilder, Zealot
Tier 3: Alchemist, Antipaladin (Fiendish Bond w/ succubus or shadow demon), Bloodrager (Urban), Cryptic, Daevic (w/ Knowledge Passion), Dilettante, Dread (w/o fear immune enemies), Enlightened Scholar (w/ spellcasting), Fey Adept, Highlord, Incanter, Inquisitor, Investigator, Magus (Bladebound, Eldritch Archer, Hexcrafter), Medic, Mesmerist, Occultist, Paladin (Sacred Servant + Oath of Vengeance), Omdura, Psychic Warrior, Rogue (Eldritch Scoundrel), Skald, Soulknife (Gifted Blade), Soul Weaver, Thaumaturge, Unchained Summoner, Vigilante (w/ spellcasting), Vitalist, Vizier, Warder, Warlord, Warpriest, 
Tier 3.5: Aegis, Antipaladin, Armiger, Armorist, Bard, Barbarian (most archetypes), Blacksmith, Bloodrager, Brawler (most archetypes), Commander, Conscript, Dragoon, Eclipse, Elementalist, Eliciter, Hedgewitch, Hunter, Guru, Mageknight, Magus, Medium, Mountebank, Necros, Nexus, Paladin, Prodigy, Radiant, Reaper, Sage, Scholar, Sentinel, Shifter (by Drop Dead),Dead), Soulknife (Gifted Blade), Spiritualist, Stormbound, Striker, Symbiat, Tactician, Technician, Thaumaturge (Savant), Troubadour, Wraith, Zodiac (Lunar)
Tier 4: Adept, Barbarian, Brawler, Daevic, Demon Hunter, Echo, Fighter (Martial Master, Mutation Warrior), Marksman, Ranger, Soulknife, Unchained Barbarian, Unchained Monk, Unchained Rogue, Vampire Hunter, Vigilante,Vigilante, Voltaic, War Dancer, Voltaic, Zodiac (Solar)
Tier 4.5: Enlightened Scholar (w/o spellcasting), Fighter, Kineticist, Kusa, Shifter, Slayer, Monk (Monk of the Lotus, Qinggong Monk), Ninja, Rogue (most archetypes), Soulknife, Successor
Tier 5: Cavalier, Gunslinger, Paramour, Monk (most archetypes), Samurai, Swashbuckler, Rogue, Vauntguard
Tier 5.5: Expert, Monk, Dread (w/ fear immune enemies)
Tier 6: Aristocrat, Commoner, Warrior
Others: Gentleman (the class is satirical / intentionally unplayable)