Regarding your search for Aikido in Columbus Ohio. I read all the good advise given thus far on finding a dojo to suit your needs and there really isn't much worth adding. I can personally recommend all of the dojos you've listed. They all have unique qualities worth pursuing.
I just want to mention that there is yet another Aikido dojo in Columbus Ohio - The Circle Of Harmony. Friends are always welcomed and you can find out more by going to www.aikicircle.com
Best of luck to you,