Ok, first a little background so you don't think I'm TOTALLY out to lunch - we serve our google ads about 25,000 times a month. I use them to get our name in front of the client for ANY syracuse & photography related search just so they've seen us. I want TONS of people to see us - and remember us.
I track each of our ad variants. Our all-time click thru rate is around 1.4 for search and .25 for content, both of which are high and the reason I think both are high is we create "geico" style ads. Things that are just SO off the wall you have to laugh. Our most successful is:
Picture Infinity Studios
More fun than a barrel of monkeys.
Not that monkeys aren't fun.
www.PictureInfinity.com
Average search CTR - 1.9%
Average content CTR - .4%
Here's the latest, see the attachment: