I would not go as far to say it is like engineering bachelor degree...
Yes the first year will serve to get everyone up to speed, after that it is pretty much modelled and similar to Canadian dentistry schools.
Now in terms of comparing high-school to university, its not easy, imo an average of 98% in highschool is probably a 88% in university.
If you have exceptional grades in high school, i'm sure you will stand out. Grades however are not everything, most university applicant will already have a bachelors or will be completing one and thus will have had more time to gain valuable experience in research, laboratory work, patient care etc.
I applaud the high school applicants applying, in retrospect if I could get in from high school I would, but I completed a bachelors and am glad I did, it helped me mature and gain a lot of life experience that I needed, but hey people in europe go straight to med after highschool, but I had heard high school there is much more difficult, probably comparable to first year of university- A level courses etc.
I hope all of you guys get in, regardless of whether it is highschool or undergrad or masters students.
TBH it would be much more disappointing for an undergraduate to not get an offer, high school students can always take the normal route and head to university.