The first one is my favorite of the three. Communicate Clearly for vodafone. I think its really clever. The red is the same red in the logo for the company. But I think ads with verbal solutions are usually going to have a lot of red in them to get the attention of their target audience because they don't have an intriguing image to grab attention immediately.

The last two are ads from the same campaign- Dagens Industri a newspaper in Sweden. The advertisements are urging people to advertise in their newspaper during the time of recession. They state that if you advertise when no one else is you will gain market share. I like the "peep" one more than the "recession at last!" one because I think it communicates more clearly the fact that no one else is advertising because of all the empty space.