You’ll have the liquidity to invest. And you’ll have the tax shelter of the mortgage interest.
of course, SDR is right, you are talking about the future and several things could change. The interest rate may go up, if so, you’ll be better off increasing your down payment. In addition, the mortgage interest deduction in its current form will likely change. There will likely be a cap of some type, either in % or in total amount. That may lead you to want to pay more down as well.