USA or UAE or UK (GBP is strongest)?

Interest rate in India on your savings is 15% per year whereas in US its 0.25%per year. UK have free medical, free comprehensive retirement and even with high unemployment one can live a luxurious life. The high and strong value of GBP make personal economy of holder very very strong and powerful.UAE and KSA are tax free, have highest saving and complete tax free luxurious work environments. What does USA offer to its tax payers and citizens?