I'm getting my poster for next week's CORD conference ready. I'm sending to Kinko's tomorrow. I hope it doesn't cost me an arm and a leg at 30''x40''. Which design do you prefer?
Any suggestions welcome in the Comments section.
Poster #1: White background, yellow banner

Poster #2: Blue background, yellow banner

Poster #3: Blue background, white banner

Poster #4: White background, white banner