Midget week hands down. You get both divisions with a few guys doing double duty. Temps might be a little cooler and the crowds a little smaller for midget week which i like. Depends how much time and money you have to spend. Midget week is consecutive nights and sprint week isn't. Also it depends where home is for when this is done. Midget week ends at Kokomo and sprint week ends at Haubstadt which might make your trip home shorter or farther. Being from Wisconsin i like ending all our race trips at Kokomo!