Hell yeah, Daphne was the classic "Bimbo" character. I mean, she had no character, she was just a "Yes Girl" to Fred's plans.

Velma on the other hand, cracked all the cases with style and panache. She was the brains of the operation.

She also planned out all the quality traps, using Shaggy and Scoob as bait which backfired.

And she had a wonderful sense of vulnerability when she lost her glasses.

As far as the female characters in Scooby do went, Velma was the boss.

I figure she'd be quite kinky too but thats another story.