Love. We like candy rather than love it. Save Love for something higher.
Most. In writing, do not use 'most for almost.
Mutual friend. Though Dickens used this expression in one of his titles in the sense of common friend, it is considered incorrect by many critics. The proper meaning of mutual is reciprocal.
Nothing Like. Do not say, “Nothing like as handsome.”
Of all others. Not proper after a superlative; as, “greatest of all others,” the meaning being “the greatest of all,” or “great above all others.”
Only. Be careful not to place this word so that its application will be doubtful, as in “His mother only spoke to him,” meaning “Only his mother.”
On to. Not one word like into. Use it as you would on and to together.
Orate. Not good usage.
Plenty. Say, “Fruit was plentiful,” not “plenty.”
Preventative. Should be preventive.