What country would you like to be the land for your nation, if possible to 'teleport'? That mean all your population would settle there, and all their population will resettle to your land, no matter the numbers.
I've been thinking between Britain and Turkey, for my 145 million Russian brothers and sisters:
1. Britain;
+ island-fortres with moat filled water (impossible land invasion)
+ all rich countries are near (good for trade)
+ direct sea route to America (new world, another rich country suitable for trade)
+ north sea have oil
- bad weather
- low on resources
- close to Iceland volcanos
- average size
2. Turkey
+ crossroad between Europe-Asia-Africa
+ warm sea
+ perfect weather and conditions for living and agriculture
+ abundance of resources
+ closeness to european technology and middle eastern craftsmenship
- vulnerable to land invasion
- near war zones and poor countries
- average size
As you can see,I can't decide between 'cold boring northern island' and 'dynamic, hot and loud southern crossroad'. Maybe if i have to decide quickly i would pick Turkey, because atleast something is going on there or will happen, good or bad, a change, progress or anything, while in UK its always the same, flat line, no changes or events to shake up a nation, so you can feel you're alive. (until brexit)