Is resale value of any concern?
If so the G1000 may be more attractive.
In terms of your ops you will gain nothing from the G1000 unless you repositioning the aircraft - the G1000 comes into its own with respect to navigation and instrument flying in IMC.
As to reliability I have found the G1000 system reliable BUT the places where they can be repaired should they go wrong are far more limited and the cost greater. For a service critical operation that could well be a factor. Also I am inclined to think they tolerate damp conditions less well than traditional avionics. If the aircraft is left outside with lots of "damp" folk getting in an out (muddy boots etc) this might also be a consideration.