The forums here get these bigger vs. smaller posts from time to time...
Having been through this college recruiting rodeo twice, I agree with Everyday's post. Ultimately, talent will win out most of the time. And yet, I've seen this notion of "project-ability" of the bigger kid play out time and time again...at least in terms of getting an opportunity.
I've also seen the bigger kid get that opportunity, and fail to capitalize on it. The bigger kid will still ultimately need to perform.
For college recruiting, baseball tools matter most, not the physical size of the player. All high school players aspiring to play at the next level: getting bigger, faster, and stronger should be a part of their college recruiting plan. In my experience, it is even more important for the smaller player to get that conditioning so that they are "maximizing their measurables" at showcase time. Just my opinion based on going through the process twice.