Two completely different styles that can't possibly be compared.
Malick's movies tend to be more introspective,while Bay just blows a bunch of shit up.
I know that Bay get's a lot of shit for his Transformers movies,but I actually like his earlier stuff,like The Rock,and both the Bad Boys movies.
Malick is just on another level though.The Thin Red Line, is such an underrated movie just because Saving Private Ryan came out at the same time.