Electro Blasters are cool. They can go through walls, can be used for camping, and they make a cool noise when underwater (Try it!).

RFs are second, but only when upgraded.

Blaster ties with RFs for second, because they're uncomplicated, fast, and they get the job done.

--Now, for the ones I hate--

Pepper spray is dumb, though it has good points, as described by Rad.

TNT doesn't have much use in multiplayer, unless you're playing survivor.

Ice, IMO, is sorta useless, unless used in a freezer tag type of game.

Done,

-ThO