Honestly though, here's my favorite skills from each profession.
Warrior: Cyclone Axe (especially before they nerfed it so you couldn't randomly do constant super-axe spins), Cleave....um um that's it really.
Ranger: Melandru's Resilience

, Charm Animal (
WOLFY!), Troll Unguent.
Monk: None. All just hard work really.
Elementalist: Fire Storm, Lightning Orb, Gale (u fall ova!)
Mesmer: Wastrel's Worry (lol bosses die in seconds), Backfire, CHAOS STORM!!, Illusion of Haste (most...pointless...skill...ever!)
Necromancer: Animate Flesh Golem, Putrid Explosion(so underused imho!), Putrid Flesh, Consume Corpse
Assassin: Death's Charge, Shadow Form, Feigned Neutrality, Dash
Ritualist: Recuperation....not the most prolific rt, me!
Paragon: Cautery Signet (BURNING! AAAGH!), Agressive Refrain, "They're on Fire!" (sheer novelty value)
Dervish: Mystic Regeneration, Signet of Pious Light, erm...dunno, don't really like Dervs much.
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My avatar is feeling extra moody today.