There's a certain folly in trying to analyze and discuss the MLB draft before late March. That's because so much can change after teams start, you know, playing in the spring.
↵For instance, heading into this season, there were plenty of people who liked Florida high schooler Lance McCullers as the best high school arm in the draft. Since he's rumored to sit near 100 MPH, he's the kind of power arm that could be very attractive to teams.
↵However, questions about his pitch selection and future role have dropped him down some, as California high schooler Lucas Giolito has shot to the top of most lists right now. Add in that Giolito has a frame to grow into, four pitches he throws during games right now and that he's also reportedly hit 100 MPH in a recent game, and he's probably going to only continue to get more play as we head towards June.
↵The only caution I'd give you before you start getting too excited about the Harvard Westlake player is that no high school right-hander has ever been selected with the No. 1 overall pick in a draft. So, the Astros would have to be high enough on him to set a big precedent.