Everyone can identify with this logo. Nickelodeon used the slime as a logo and it became a brand within the station. Even though its just an orange splat, it definitely appeals to its kid audience.
The Golden Arches. The McDonald's brand is defined by that golden M. I think that color also works in this logo. If the M wasn't golden, I'm not sure that it would still have the same effect. As simple as this logo is, it is recognizable around the world.
These logos don't really work for me...
This logo doesn't work for me because I think that it doesn't go with the company. Maybe I'm missing the concept but every time I see these commercials, I never get the logo and why there is an orange lion.