Never underestimate the power of advertising.

Who will be left standing?

Only one way to find out: Vote for which advertising icons reign supreme after the jump.

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(And read the competitors stats below to help you make your decision.)

MR. SIX

Product:Six Flags theme parks

Debut year:2004

Catchphrase:More flags, more fun.

Weakness:Easily distracted by cheesy Eurodance.

The Wheres the Beef Lady

Product:Wendys restaurants

Debut year:1984

Catchphrase:Wheres the beef?!

demands at a Big Bun drive-thru, as well as a phone call to the Big Bun fat-cat CEO.

Weakness:Her fixation with beef bordered on obsession, making her kind of a drag at parties.

And when he drinks beer, he drinks Dos Equis.

Strength:Bulls flat out refuse to fight him.

So who the hell are you?

Weakness: Were too afraid to say.

JOE ISUZU

Product:Isuzu cars and trucks

Debut year:1986

Catchphrase:You have my word on it.

(It has more seats than the Astrodome!)

Strength:His creativity with the truth bordered on genius.

Plus, he loved his mom.

Weakness:Boy who cried wolf, anybody?

In Spanish, of course.

Because Taco Bell is Mexican food.

Weakness:Kind of a jerk.