What are the differences between various types of paprika, and which have the most flavor?
I don't know about brands, but there are six different types. Hot, Hungarian, Plain, Smoked, Spanish, Sweet.

Paprika releases its flavor with heat, but burns easily. So mix it in with liquid, and make sure it gets hot.

Sprinkled onto a cold dish (like deviled eggs), it remains quite bland. Add it to browned hamburger meat, and you're halfway to taco heaven.