dusman, would you please elaborate so that subsequent designs can follow the path of Best Billboard Design practices as they apply to Ron Paul and the campaign as a whole, the longer term. You seem to have a strong and trusted voice and this thread is at the point where guidance is essential. If you could give us some concrete criticism it would help the thread. If you can comment at a technical level that might marshal the energies of this thread to press forward in a cohesive manner.
As stated earlier, with billboards, simple is always better.
Without, limiting creative potential, it's important to first set some boundaries on creative projects so we can frame what the message should be and what audience its for. In this case, the audience has to take overwhelming priority, since its as you are driving and visibility will be generally low as has been discussed so far. Considering how high it is, those drivers might also lose line-of-sight some 100 ft. before/after the sign.
At this point, it seems you guys have the two pieces of the puzzle already figured out:
1) Message: military themed, featuring donations, and 2) Audience: highway traffic with limited visibility
Now, set some boundaries:
Messages
- Ron Paul gets more military donations than all the other candidates
- Ron Paul receives 53%, Obama 25%, and Other GOP Candidates 23% (BTW, this is 101%?)
- Many more in the Military agree with Ron Paul's foreign policy over any others
- Maybe there are alternative messages here unrelated to each other, but generally agreed upon.
Considerations
- 4-6 second exposure to highway traffic
- No competing messages in the vicinity, which is a great opportunity that should be aimed at inspiring a call to action
- Ad wording should be short and concise. Avoid sentences and long quotes. Use visual aids in substitution of words
As you proceed, keep adding those small notes for others to review and that will help hone in on design orientation. Someone should mediate those suggestions and update those notes. This person should be objective on what gets added. For example, if someone suggests wording that is too long, the mediator should address why it's not being included based on the prior observations in the main list. This goes a long way to getting really good results.
Designers like working in circles, not boxes, so keep it open and objective.
I might have overlooked
Liberties"R"Us concept if it weren't for the preview on the actual sign it will be on. Here's what I liked when I saw it:
- The sign itself is more vibrant and brighter than the blue sky. While at the same time I could imagine on an overcast day, that bar graph and wording will stand out even more and sort of "float" on the skyline. It sparks a curiosity of how it would look at night.
- The bar graph in red naturally commands the attention of drivers and seems to be the most eye-catching aspect in the environment.
- It plays well on the visibility increasing as you approach the ad. The first detail that would be noticed is a bar graph with clearly a winning category. Next to come into focus would be "More Troops $upport Paul" which gives frame to the graph, and then finally the details of who he beats (EVERYONE!). Simple and to the point.
- The message is very subtle and creative. As a curious driver, I'd want to know more about what it represents. I might go look that up on Google and be barraged with hundreds of web pages about it. What better place to start people off who might not know.
- My call to action is either I want to see if that is true or I want to prove that wrong. Either way, it works positively in our favor to get people looking it up.
Suggestions for that ad:
- Maybe doing all-caps on the categories of the bar graph. This purely for the sake of readability over a bit longer distance.
so yeah it will blend in really well! out of existence!! 
