We like Entry #5 best right now.
Couple comments: This logo is very similar to our 2013 Annual Meeting logo, which you also designed. Our decision maker just reviewed the logos and is asking that all logos use the VAG rounded font that is used in the NCAC's organization logo. We would like both the meeting & organization logo to share that font. Lastly, we are still looking for more design elements that reflect the meeting location, Providence, RI.
Thanks - i look forward to seeing your next design.