V1 can never exceed VR by definition, the theoretical V1 for you max regulated take off weight can be higher, but that means V1 = VR.
John, I don't quite understand you reasoning regarding a higher V1 helping with close in obstacles. Do you mean that if you elect to stay on the ground, you are less likely to be scared by the obstacle if you lose an engine? V1 selection will have no effect on the climb.
Selecting a higher V2 is an option on some big jets, this allows a better climb angle due to being closer to VIMD. I don't think this applies to turboprops though.