Without argument, the most successful developed country in the world is the United States, with an annual GDP exceeding $20 trillion.

Interesting thing about our taxes: there is a "sweet spot" in the tax rate of about 24.5%, below which and above which the actual revenues to the government actually goes down.  Too little taxation, and revenues decline.  Too much taxation, and revenues also decline, as the increased tax rate disincentivized production.

Under the current administration, the tax rate was recently returned to this optimal value after a number of years at a significantly higher rate, resulting in record revenues in FY 2018 (ending October 2018).