Due to how the ilevel syncing system works I suspect these are the current "best" left side sets for participating in Frontlines and i80 PvP
TankWeapon (Paladin): Break Blade (EX Primal Weekly) or Curtana Novus (Relic, Crit/Det)Healer: (gear with an * is Crit gear otherwise it is SpS gear, no current waist piece has Det and either Crit or SpS)
Shield (Paladin): (Tidal) Wave Shield (Lev EX) or Holy Shield Novus (Relic, Crit/Det)
Weapon (Warrior): (Tidal) Wave Axe (Lev EX) or Bravura Novus (Relic, Crit/Det)
Head: (Weathered) Noct Circlet(Soldiery)
Body: Phelegethon's Cuirass, (Augmented) Wolfram Cuirass HQ (Crafted) or Cuirass of Divine War (HI/SVHM/TTHM)
Hands: Heavy Wolfram Gauntlets HQ (Crafted) or Heavy Allagan Gauntlets (BC1-T4)
Waist: Lionsmane Belt (PvP, Rank 32, Paladin only), (Weathered) Noct Belt (Soldiery) or Hero's Belt of Fending (Myth/Allied Seals)
Legs: Heavy Wolfram Cuisses HQ (Crafted)
Feet: Phelegethon's Sabaton's (ST) or Sabatons of the Divine War (HI/SVHM/TTHM)Weapon (Scholar): Omnilex Base/Zenith/Atma/Animus/Novus (Relic, Det/SpS), Omnilex Novus* (Relic, Det/Crit) or Allagan Grimoire of Healing* (BC1-T5)Monk:
Weapon (White Mage): Thyrus Base/Zenith/Atma/Animus/Novus (Relic, Det/Sps) or Adjudicator's Gavel(Ramuh EX)
Head: Royal Crown(CT1) or (Weathered) Daystar Circlet* (Soldiery)
Body: (Augmented) Cashmere Robe of Healing (Crafted) or Scylla's Robe of Healing (CT2)
Hands: (Weathered) Daystar Gloves(Soldiery), Halfgloves of the Divine Harvest (HI/SVHM/TTHM) or Saurian Gloves of Healing HQ* (Crafted)
Waist: Saurian Belt of Healing HQ (Crafted), Royal Sash (CT1), High Alllagan Belt of Healing, or Scylla's Belt of Healing (CT2)*
Legs: Cashmere Skirt of Healing HQ (Crafted)
Feet: Crakows of the Divine Harvest (HI/SVHM/TTHM)Weapon: Allagan Baghnakhs (BC1-T5) or Sphairai Novus (Det/Crit)Dragoon:
Head: Allagan Visor of Striking (BC1-T4)
Body: (Weathered) Gloam Tabard (Soldiery), Fuma Koromo, (Augmented), or Saurian Shirt of Striking (Crafted)
Hands: Allagan Gauntlets of Striking (BC1-T2)
Waist: Allagan Tassets of Striking (BC1-T4)
Legs: High Allagan Trousers of Striking (BC2-T4) or Fuma Hakama (CT1)
Feet: Saurian Boots of Striking (Crafted)Weapon: High Allagan Spear(BC2-T4) or Gae Bolg Novus (Relic, Crit/Det)Bard:
Head: Allagan Visor of Maiming (BC1-T4)
Body: Wrym's Mail (Myth/Allied Seals) or Cuirass of Divine Wisdom (HI/SVHM/TTHM)
Hands: (Weathered) Astrum Armguards (Soldiery)
Waist: Onion Tassets (CT1) or High Allagan Belt of Maiming(BC2-T4)
Legs: (Weathered) Astrum Breeches (Soldiery), Wyrm's Breeches (Myth/Allied Seals) or Breeches of Divine Wisdom (HI/SVHM/TTHM)
Feet: Wolfram Sabatons (Crafted), Allagan Sollerets of Maiming (BC1-T5) or Onion bootsWeapon: Thuderdart(Ramuh EX), Elfin Bow(EX Primal Weekly) or Artemis Bow Novus (Relic, Crit/Det)Caster (Crit):
Head: Amon's Hat(CT2), Cashmere Hat of Aiming(Crafted) or Ballad Crown(CT1)
Body: (Weathered) Auroral Tabard (Soldiery)
Hands: Amon's Sleeves(CT2) or Ballad Gauntlets(CT1)
Waist: (Weathered) Auroral Sash(Soldiery) or Hero's Belt of Aiming(Myth/Allied Seals)
Legs: Sarouel of Divine Light (HI/SVHM/TTHM)
Feet: Allagan Sollerets of Aiming (BC1-T4)Weapon (Blackmage): (Tidal) Wave Staff (Lev Ex), Elder Staff (EX Primal weekly) or Stardust Novus (Relic, Crit/Det)Caster (SpS):
Weapon (Summoner): (Weathered) Book of Spades (Soldiery), Allagan Grimoire of Casting (BC1-T5) or Veil of Wiyu Novus (Crit/Det)
Head: Crimson Hat (CT1)
Body: (Weathered) Evenstar Coat (Soldiery) or Summoner's Doublet (Myth/Allied Seals, Summoner only)
Hands: Saurain Gloves of Casting (Crafted)
Waist: Scylla's Belt of Casting (CT2) or Crimson Sash (CT1)
Legs: High Allagan Breeches of Casting (BC2-T4) or Sorcerer's Tonban (Myth/Allied Seals, Black Mage only)
Feet: Crimson Boots (CT1)Weapon (Black Mage): Stardust Rod Base/Zenith/Atma/Animus/Novus (Relic, Det/SpS)
Weapon (Summoner): Veil of Wiyu Base/Zenith/Atma/Animus/Novus (Relic, Det/SpS)
Head: Syclla's Helm of Casting (CT2) or Monocle of Divine Death (HI/SVHM/TTHM)
Body: High Allagan Coat of Casting(BC2-T3) or Allagan Tunic of Casting (BC1-T2)
Hands: Scylla's Gloves of Casting (CT2) or Allagan Gloves of Casting (BC1-T2)
Waist: High Allagan Belt of Casting (BC2-T2) or Saurian Belt of Casting (Crafted)
Legs: Cashemere Breeches of Casting (Crafted) or Crimson Breeches (CT1)
Feet: Saurian Crakows of Casting (Crafted)