NFL playoffs question?

Hey. I have a few play-off related question: 1. I know that in each round teams are matched up with the best playing the worst and the middle two playing each other, but are the teams ranked by their original seeds or by record. I know they are ranked by seed for wild card weekend, but does it stay that way for the divisional round? 2. Who do you think will win in Eagles v. Vikings? 3. Who do you WANT to win it all? for me - Atlanta Falcons! Thanks