Spoiler: L5 Sorcerer
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L5 Arcane Bloodline Sorcerer:
Feats: Spell Focus: Conjuration, Augment Summoning, Summon Good Monster,
L1: Identify (Bloodline), Summon Monster 1, Enlarge Person, Dazzling Blade, Snowball, Stumble Gap, Mage Armor
L2: Invisibility (Bloodline), Summon Monster II, Alter Self
(Spells embedded in Summon Monster:
Grig: Entangle, Pyrotechnics
Faun: Hideous Laughter, Sleep
Pseudodragon: not spells, but Blindsense 60 and telepathy)
(So, can use save or sucks against all 3 saves, depending on need. Nice AOE control in entangle and pyrotechnics. Alter self provides aquatic movement, dark or low light vision or scent, natural attacks in the unlikely event that you want one. And a Str or Dex buff. You get a familiar from Arcane Bond, which you can hit with enlarge or alter self if you need. An Invisible Pseudodragon is a fantastic scout).

Spoiler: L10 sorcerer
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L10 Arcane Bloodline Sorcerer:
Feats: Spell Focus: Conjuration, Augment Summoning, Summon Good Monster, Dazing Spell, Craft Wondrous
L1: Identify (Bloodline), Shield, Enlarge Person, Dazzling Blade, Snowball, Mount, Mage Armor, Magic Missile
L2: Invisibility (Bloodline), Summon Monster II, Scorching Ray, Resist Energy, Create Pit, Command undead, Burning Gaze, Mirror Image
L3: Dispel Magic (Bloodline), Summon Monster III, Haste, Slow, Shrink Item, Paragon Surge
L4: Dimension Door (Bloodline), Summon Monster IV, Monstrous Physique II, Emergency Force Sphere, Greater Invisibility, scrying (Dazing Magic Missile, Dazing Snowball) (Gets an extra spell from arcane bloodline)
L5: Summon monster V (Dazing Scorching Ray, Dazing Burning Gaze)
(Spells embedded in Summon Monster:
Grig: Entangle, Pyrotechnics
Faun: Hideous Laughter, Sleep
Pseudodragon: not spells, but Blindsense 60 and telepathy
Lantern Archon: Aid, Detect Evil (and Aura of Menace)
Lyrakien: Ventriloquism, Cure Light Wounds, Lesser Confusion, Silent Image
Silvanshee: Dancing Lights, know direction, Speak with Animals (lay on hands)
Dretch: Cause Fear, Stinking Cloud
Faerie Dragon: Grease, Silent Image, Greater Invisibility (Self only), (telepathy 100)
Hound Archon: Aid, Message, Magic Circle against Evil, Beast Shape (Self only)
Pixie: Dispel Magic, Detect Thoughts, Entangle, Permanent Image, shield, Detect (alignment), Constant Invisible
Bralani Azata: Blur, Charm Person, Gust of Wind, Mirror Image, Wind Wall, Lightning Bolt, Cure Serious Wounds
Djinni: Gaseous Form, Create Wine, Persistent Image, Wind Walk
Vulpinal: Cure Disease, Major Image, Flame Arrow, Holy Smite, Dispel Evil, Charm Monster, (Bardic Knowledge, Lay on Hands)
Babau: Darkness, Dispel Magic,
Mephits: Acid Arrow, Stinking Cloud, Blur, Glitterdust, pyrotechnics, shocking grasp, lightning bolt, chill metal, heat metal, soften earth and stone, wind wall)
(So, Disabling attacks on all 3 saves, Travel via Wind Walk, Gaseous Form and D door, Curing abilities likely significantly exceed the druid, including dispel evil, a fantastic cleric spell that wipes out enchantment effects from evil creatures without a check. Buffs include haste, aid, magic circle v. evil, blur, greater invisibility, enlarge person, mage armor, mirror image and others. Vouivre Form gives 10 minute Flight, swim speed/water breathing, cold/fire/sonic resist, a claw/claw/wing/wing/bite/grab attack routine with reach in a form that can speak and hold wands (we will need to retrain in a few levels to add the breath weapon). Emergency Force Sphere is an immediate action NO that is handy to have in a spammable form. Significant melee minion abilities. Significant Scouting abilities. Significant Blasting abilities. Scrying + D Door= scry, kill, DDoor out. Abilities a wizard can't easily duplicate at this level (aside from spamming useful spell 4 times) include Dispel Evil, Wind Walk and Persistent Image. At level 11 we pick up Lesser Planar Binding, Magic Circle V Evil (as a spell known, not from a summon), and Overland Flight). Paragon surge fills niche holes.


That looks pretty competitive to a wizard to me. I think a PF druid would have a hard time beating it at this level.