Minor nitpick. Many, many people in this thread have repeatedly stated that you have to be a level 20 cleric to get a +5 from Magic Vestment. This is not true. The bonus from Magic Vestment and GMW goes to +5 at level 15.
From a personal standpoint, the cleric spells that truly bother me the most are Divine Power, Holy Word, and Implosion. Divine Power, because it is, by it's nature, a spell that can only be used in a selfish manner, thus encouraging clerics to buff themselves rather than the party to get the most out of this very tasty spell. Holy Word, simply because it's very overpowered in PvP, what with it allowing no save. Implosion, because the only way to defend against it is to make a successful save, meaning that even a level 20 Dwarven Defender has a 1 in 20 shot of getting insta-pwned by this spell. Though my real problem with implosion is that it just doesn't feel like a cleric spell, thematically.
Maybe if it was a beam of holy smiting light rather than a whirling vortex of super-pressurized atmosphere.
Just my two cents.
Spells have been modified for balance's sake on PotM. There is an incomplete list of the changes here on the forums.
Greater Magic Weapon
Caster Level: Bard 3, Cleric 4, Paladin 3, Wizard/Sorcerer 3 (Gained at level - 8/Bard, 7/Cleric, 12/Paladin, 5/Wizard, 6/Sorcerer)
Innate Level: 3 School: Transmutation
Component(s): V, S Range: Touch
Save: None - Spell Resistance: No
Area of Effect/Target: Creature or Melee Weapon
Duration: 1 Turn + 1 Turn / Level
Description: You empower the touched weapon with a +1 enhancement bonus per 4 caster levels (maximum of +4). You can either directly target the weapon you want to cast this spell on, or you can target a creature, affecting the creature's main hand weapon.
• Level 4 +1 enhancement
• Level 8 +2 enhancement
• Level 12 +3 enhancement
• Level 16 +4 enhancement
• Level 20 +5 enhancement
Magic Vestment
Caster Level: Cleric 3 (Gained at level 5/Cleric)
Innate Level: 3 School: Transmutation
Component(s): V, S Range: Touch
Save: None - Spell Resistance: No
Area of Effect/Target: Creature, Armor or Shield
Duration: 1 Turn + 1 Turn / Level
Description: You empower the touched armor or shield with a +1 AC bonus per 4 caster levels (minimum of +1).
• Level 1 +1AC
• Level 8 +2AC
• Level 12 +3AC
• Level 16 +4AC
• Level 20 +5AC
If I have any beef about Clerics, it's that Darkfire is somehow more awesome than Flame Weapon. COME ON, GIVE MAGES SOMETHING.