For their memorability and impact:
* "Just Do It" (Nike): Simple, powerful, and encourages action.
* "I'm Lovin' It" (McDonald's): Upbeat and conveys happiness.
* "Think Different" (Apple): Inspiring and emphasizes individuality.
* "The Ultimate Driving Machine" (BMW): Evokes a sense of luxury and power.
For their humor and wit:
* "Where's the Beef?" (Wendy's): Playful and challenges competitors.
* "Don't Be a Dummy, Use Your Head" (Head & Shoulders): Humorous and memorable.
* "Got Milk?" (Got Milk? Campaign): Simple, catchy, and sparks curiosity.
For their social impact:
* "Real Men Don't Eat Quiche" (Various): Initially used to satirize gender stereotypes.
* "Yes We Can" (Barack Obama campaign): Hopeful and empowering.
Ultimately, a good catchphrase should be:
* Memorable: Easy to remember and recall.
* Relevant: Connects to the brand or message it represents.
* Impactful: Evokes a strong emotion or reaction.
* Unique: Distinguishes itself from other catchphrases.
The "best" catchphrase will depend on the context and the intended audience.