Can you name one area where MHS is better then Xavier ?
But seriously (not that I think Pokemon isn't serious -it is), there are many areas, I'll name a mix of academic/social/sporting for completeness (there are more):
1) If you want nearly an entire cohort of like-minded (ie. high academic goals) people
2) If throughout schooling you've been labelled as a "nerd", you'll fit in fine as one of the jocks at MHS
3) If you've got some talent in Badminton, Chess, Debating, Table Tennis, break-dancing, waterpolo, swimming and athletics (some years) and actually want to win state titles
4) Whilst not all teachers are amazing, there are many great teachers and being in a strong cohort mean your SACs scale up heaps
5) I can't talk for Xavier, but at MHS there is a club for nearly anything: debating, anime, cadets (army + air-force), environmental, public speaking, economics, political interest, maths extension, chess, gay, scrabble, etc etc. It covers all interests and no-one is left behind
6) MHS has arguably the best Year 12 Formal in the state. I don't recall Katy Perry crashing Xavier's Formal, but I do remember some students being idiots in wheelie-bins (it's reputation isn't what it once was)
7) MHS has a brilliant music department which also gets to work with Mac.Rob, every student plays a role in this department to some degree. Part of the ethos of "more than just marks".
I could go on, and I'm sure Xavs has some great advantages too, maybe even more than MHS. Who knows, haven't been to Xavs. Just saying that it's not all a one-way street and there are positives to both schools.