Calorie Counts

Something interesting I thought I would share. I went to the family doctor a week or so again because I was ill and had asked him about how many calories I should be consuming since I was trying to lose weight. He told me 1700 would be adequate.

The next week, I went into my work office (dermatology) and was talking to one of the doctors about how I was trying to lose weight. She was telling me about her hollistic diet and I was getting really motivated. I told her about the 1700 my family doctor had suggested and she told me that I should probably be eating more, since I am a male and I am young. So, to further my research, I tried multiple calorie counting calculators and here are the results:

http://www.globalrph.com/diet_calc.cgi - no more than 2215 calories to lose weight
http://www.caloriecontrol.org/calcalcs.html - 2247.5
http://nutrition.about.com/od/changeyourdiet/a/calguide.htm - 2486 with no exercise, 2949 with 30 minute exercise daily

Ok, so now I'm really confused. How much should I be taking in? Maybe I'll average the three together and go off of that.