I am left handed, shoot left hand, left eye dominant, only buy left hand rifles.
It is a good idea to learn to shoot with your dominate eye.
Same here. We lefties buy and shoot left handed guns for the same reasons righties buy right handed guns, not left.
However, that doesn't address the OP's question. For any of the mixed situations, it really depends on the shooter's specific needs and preferences, and the gun(s) in question.
