Ohio allows you to either claim the Lump Sum Retirement Credit once, or the Retirement Income Credit each year.
Most people that take a lump sum distribution distribute most or all of their taxable retirement savings with it. In that case, there's not much potential retirement income left to get a Retirement Income Credit for in future years. People that do this are generally better off taking the Lump Sum Retirement Credit.
On the other hand, if your lump sum distribution didn't represent a large part of your taxable retirement savings, you might be better off waiting to claim the Retirement Income Credit each year. That way you can still get a credit every year for your large amount of remaining retirement income.