Parameters can be used to see a whole workbook, while quick filters are only for individual sheets. You can't apply the same filter to various worksheets, but you can with parameters. You can pick several values for fast filters, but not for parameters, which are limited to a single value. During computations, parameters can be used in calculated fields, but filters cannot be used in calculated fields. You can pick or input things like integers, floats, strings, and dates and times in parameters, but you can't do so in filters.