Ohio has a 30 percent chance of being the tipping-point state, meaning that it would cast the decisive votes in the Electoral College. That’s as much as the next two states on the list, Florida and Virginia, combined. It’s also as much as Colorado, Nevada, Iowa, Pennsylvania, New Hampshire, Michigan and North Carolina combined.
All of these states are competitive. But really, they exist along a continuum of electoral power rather than falling into binary categories of "important" and "unimportant." Ohio is at the extreme end of that continuum.