Really? 
You can't figure that out? 

It ALL depends on what percent you set the income tax rate at. Do you tax capital gains? Do you tax pensions and Social Security? 

How much a sales tax raises depends on the percent the sales tax is and which items are subject to a the tax. Do you tax food? Do you tax clothing? Do you cap big ticket items like cars and trucks?

So NO, you can't make a blanket statement that a sales tax generates more revenue than a income tax, until you answer these questions and have real numbers to plug in. Duh!