OmniPrep
Were your thank you cards very plain? My interviewer seemed pretty disconnected during the interview, did not have a lot of good things to say about the school, and did not even write my name on the card...
Trying not to read into things, but I was excited and very prepared for my interview. I did not get that 'conversation' flow that is generally seen during the Anderson interviews. I hope my interviewer does not have too much weight in my application...
I think you're thinking too hard about it. A thank you card is typically quick and succinct in nature. Mine was nice and wished me luck and thanked me for making the long drive (I was literally on the dot at the start due to like 4 accidents on my drive).
What do you mean by 'conversation' flow generally seen during the interviews? I felt like my interviewer asked pretty standard questions and I led him to reveal some more personal details to keep it light as opposed to strictly business.
Regardless of any factors, I would venture to guess the interviewer has some input, but your application pretty much states who you are. There are too many variables with the person giving the interview to say they would be such a determining factor. Remember that your app gets reviewed three times with yay, nay, or waitlist so I'm sure there are more items that provide a heavier weight to the decision. Best of luck!