What schooling system do you prefer?

As a parent of 2 young children (6yrs and 9yrs) I'm constantly debating (internally) if I should change the school system they are in.

We live in New Zealand but my wife is from France. My French is pathetic to say the least so we have put our kids into a French immersion public school. However, my youngest son in particular is struggling to fit into that system. So much so that the teachers suggested he see a specialist which led to him being diagnosed with ADHD. You can see my post on that here.

I refuse to drug my children and I'm quite anti establishment. I like the principle of home schooling, however, given that both my wife and I work this would require some serious changes at home. I'm thinking next year that perhaps a Montessori school with part time French lessons would be a good compromise.

I would really appreciate feedback from the community here on their experiences on either home schooling, Montessori or any other options out there.

Therefore please let me know your thoughts on:

1. The standard school system in your area
2. Home schooling
3. Montessori education
4. Other options I might want to consider.

Thanks

Alan