GDP Nominal and per capita, what does it mean is it good country for business ?

What is the best county for business based on the attached data in terms of GDP and why?

What is the relation between GDP and PPP and how to read it as economist and to link it with the economy environment for such country ?

What is the best county for business based on the attached data in terms of GDP@PPP and why? please explian.

 

 

Area GDP (nominal)5 GDP (PPP) Country Population[57] (km) (USD million) HDI Per capita ($) (Int$ million) Per capita (Int$) 0.875 (very Bahrain 1,569,439 787 44,870 28,385 95,784 60,596 high) 0.816 (very Oman 4,829,473 309,500 104,902 21,960 201,531 42,188 high) 0.855 (very Qatar 2,795,484 11,581 219,570 83,891 326,731 124,834 high) 0.875 (very Saudi Arabia 32,175,224 2,149,690 1,061,902 29,922 2,300,967 64,836 high) 0.911 (very United Arab Emirates 9,890,400 83,600 498,978 49,451 890,171 88,221 high) 0.831 (very Kuwait 4,420,110 17,818 164,713 33,646 259,640 53,037 high)