Sorry, I should have been more specific.
From an economic standpoint, the most "sensible" (i.e. most efficient and least distortionary) tax is one that relies primarily on natural resources and other forms of economic rent instead of taxing labor, businesses, non-land property, wealth, or the creation of value. However, these rent-based taxes would need to be set very high to fully replace income, corporate, payroll, sales, property, VAT, wealth, estate, etc taxes.
Switching to such a system would be painful for people whose net worth is disproportionately invested in land or who consume significant resources relative to their income. If the majority of the population fall into this category (as is not uncommon in capitalist democracies) then such taxes would be broadly unpopular, making them politically infeasible.