Consider some of the political ads you have seen in the past. Think about how it made you feel to see politicians mud slinging and criticizing their opponent instead of telling us what they can do that is positive.

Talking about your competitors is generally a bad idea and criticizing the competition is definitely a bad idea! Nobody likes to hear it and derogatory comments reflect much more on the speaker than the accused. A much better alternative is to speak in positive terms about yourself and your company!