School district. This is huge. Literally, I've seen a 20% price difference among houses across the street from each other because they are in different towns/school districts.
Steep driveway. No, I kid you not. When I was house hunting, I went to view a house. While I was waiting for my agent to show up, the person across the street could not get her car up her driveway because of the snow/ice. I had to help push. That's when I thought, "I'm single. Who's going to help ME push my car up the driveway?" That's when I decided NO steep driveways.
Facing - if your driveway is on the north side of the house, the snow will not melt and you will be looking jealously at your neighbors' clear driveways across the street. <sigh>
Proximity to other houses - I rejected some neighborhoods because the houses are built too closely together. I do not wish to smell my neighbor's cooking.
Age - Older house -> more repairs in general.
Mil rates - these can change, but at least you'll have a say in it.
Fixtures - nicer is better. I am jealous of people with Six-panel doors. That being said, you can always upgrade after you move in, but it won't be cheap.
Flood plain. Yeah, check it.
Don't fall in love with a place until after the closing.
Do you really want to have a baby and a mortgage while you are still in school?