My Little Pony
Never liked Outlaw Star's OP song, but the visuals are far more interesting than MLP's. On the other hand... I would never skip MLP's OP.
Dragonball Z
No contest here, DP's song was ugh, and visuals are below DBZ's.
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My Little Phineas and Ferb: Summer is Magic!
Aww, I lost to SuperNiceDog, Winner of the Rivalry Rumble Guru Contest