front and center
In the most prominent position, as in You couldn't miss John—he was front and center in that presentation. This expression alludes to the best and usually most expensive seats in a theater.
Examples from the Web for front and center
More than any other vice-presidential nominee ever, he will be a front-and-center target.How Obama Will Cash In on Paul Ryan: Medicare, Taxes, Education & More|Robert Shrum|August 13, 2012|DAILY BEAST
Political sex scandals are a front-and-center part of the culture, becoming more bizarre every day.