Chaminade definitely has the edge for the 2020 year.
The attack is very strong, SA won't have an easy time stopping those boys. Between the freshman line and now, they have improved drastically. With the addition of a freshman onto their JV roster they're only getting better as time goes on.
The middies at Chaminade are probably the closest competition but then again they have lots of middies who could compete with the SA starting line. A lot of them are from teams such as Igloo, Terps, etc. so lack of skill doesn't seem to be an issue. With the discipline the coaches are putting these boys through along with their numbers Chaminade may be able to get the edge in the middie position.
LSMs at Chaminade have the edge no doubt. SA has a definite stud LSM but Chaminade also has a very talented Igloo player who should be able to give SA a run for their money. They also seem to have other kids who can run as backup and keep up relatively well.
Defense at Chaminade is very underrated for 2020s. To say that there are 2 good 2020 defensemen would be ridiculous. The 2020 freshman team clearly had a slacker in their starting line but they seem to have improved to sophomore year. The starting line has 2 Terps defensemen along with another defender who excels in skill without question. Although there seems to be a falling off past that line, their backups should be able to keep up.
The fogo situation at Chaminade seems to be a little iffy at the moment. Without their main fogo, Chaminade seems to be in a rough state but his backup has had very impressive numbers as far as this season on JV. It'll be interesting to see how he can preform against his SA competition.
The goalie is no contest in the slightest. Chaminade's 2020 goalie has consistently been able to impress everyone and is clearly an elite player. No issues there.