The Costello-McGee one-two punch at PVI will be tough to beat. They can rely on other pitchers to beat the less competitive teams, and save Costello and McGee for DeMatha, GC, and St. John's.
I think Good Counsel is going to be awfully good. They might well average 8 runs per game or more. That lineup is going to be powerful.
St John's has several Div I signees, and they are reloaded, so expect them to be at the top, too.
DeMatha carries about 30 guys, and it is hard to keep track of which ones will step up in any given year, but I am sure they will have 15 core players that will be capable of winning any game and winning the championship.
Those four would seem to be almost automatics to compete for the title.