The Hard Part About Writing

Craig Conley sends this our way from Bill Pere's "Writing in the Key of W":

A large part of the difficulty is in finding the balance points between specificity vs. blandness, and imagery vs. vagueness.

For Mr. Pere, those pesky prepositions seem to be the hard part of writing. Vs. is an abbreviation for versus, and it means "against." Had he replaced "vs." with "and," his sentence would have been much more clear.