The Hoophall Classic is considered the premiere high school basketball event during the high school season, and this year is no different. Over the course of three days at Springfield College, 20 five-star prospects will take the court -- including Nos. 1-5 in the 2017 class, No. 1 in 2018 and Nos. 1 and 2 in 2019. Here are some of the key storylines to watch this weekend.