If you can get a scholarship to the Staes go Div. 1. There are plenty of great athletic AND academic schools that are in Div. 1. I have absolutely nothing against the other Divisions but if you are going to cross borders and seas. make sure you are moving to the "the land where the streets are made of gold" and not just some place where they speak funny.
Your main concern should be what are your grades like, what do you plan on studying, how "serious" do you take track, where do you want to train/live, do you plan on going to school after track in the US.
1. Grades - Div.1 schools only have 12.6 scholarships for gentlemen. Unless you are on a national team or a bon fide stud you will get less than a full scholarship UNLESS the school has graduated a bunch of seniors or are rebuilding. Good grades will allow you to get an academic scholarship and you can still "claim" to be on a track scholarship to the folks back home.
2. The school and program you attend make a difference. Do not be fooled. Most people are incredibly lazy and just look for "name schools" like "name-brands" regardless of the facts when presented when hiring/dating/etc. Be very, very, very aware of this.
3. If you come from a cold, rainy country this is your opportunity to get 4-5 years of sunshine in. I can not tell you how much of a difference training outdoors will make versus running indoors.
If you are from a small town, check out a big city. If you are from the country, try the coast, if you are a city-slicker try the 'burbs or country.
4. If you are going into finance for example, please go to a school that is near a major financial hub. You will be doing yourself a huge favour. If you are into museums NYC, DC, Boston should be top considerations.
5. If you plan on going to grad school some cities have several universities in town and make "moving" a non-issue. Something to consider.
6. How serious are you with your track? Do you just want to wear the uniform, or are you trying to become an All-American, make a national team, or win a medal on the world stage. You can do this at any school but some schools lend themselves more to competing at a higher level than others.
What I mean is that the best Div. 1 schools have resources that will shame the bottom third of all nations that compete in the Olympics in track and field. You owe it to yourself to take "full" advantage of these facilities when you are there.
I hope this helped.
Runfastrunfar