QUOTE(Becky&Sam @ Jul 30 2007, 10:14 PM)

Sam had the white guy with glasses. Not too old. Very nice and polite and friendly. We have been on AP for almost six months!!!! His interview went very well, AP...............a nightmare!!
I think this is the guy we had who approved the I-130. He seems to be one of the nicest ones there. Anybody remember my husband joking with him and inviting him to dinner?

Well, he didn't get upset or anything, he just laughed. He is polite, and he even speaks some Arabic. He talked to my husband in Arabic a little.
For the visa interview we had a different CO, he was a white guy also, but he was heavy and didn't conversate with us much. Both of those guys look to be in their 30's or early 40's, but the only difference is their size.
I am not sure if you keep the same CO throughout the whole process, but I really don't think so. I just think that they only have a handful of officers that conduct the interviews, so people probably get the same one over and over. Also, I don't know how much of a difference it would make to have one specific officer to handle your case. It seems like you only get one visa interview. (or am I wrong?) After the interview, your case probably goes back into the pile, and is pulled out when needed by whichever person is handling it that day. But, who knows?
They also have other officers that handle everything else but the interviews. Like adding information to your file (receipts, forms, etc.) and double-checking that your information is correct. These employees were more friendly and were open to our questions more than the CO. So, these people could be the ones who touch your case from time to time. Maybe the interviewing officer's job is done after the interview???? Wouldn't that be great?!!!
Good luck everybody.