Which bike to choose?

Hey guys . I'm choosing a adventure bike for my trip ( around Asian , may be go to europe ) . My option is :
1. VStrom 650
2. Tiger 900 ( new version of tiger next year )
3. Africa twin
4. F800GS

I care about ( as order ) :
Reliable ( bike don't suddenly can't start , electricity break , or any critical problems made me unable to continue the journey)
1) Fuel economy
2) Can load weight
3) Engine durable

Pls enlighten me . I really one to stay with this bike 100-200.000 km . thank a lot