To the most part vs for the most part [closed]
Solution 1:
It might change across nationalities but "for the most part" is definitely more common here in Australia to the point where "to the most part" sounds a bit strange, almost wrong. The two phrases are generally not used very commonly and, even in academic contexts, I would recommend "generally/in general" instead.
I.e Instead of "for the most part, viruses are smaller than bacteria" use "In general, viruses are smaller than bacteria" or "Viruses are generally smaller than bacteria"