I've lived in 4 houses where I can remember the setup:
House 1: Washer Left
House 2: Washer Left
House 3: Washer Left
House 4: Washer Left
The new dryer we just bought has hinges on the right, so it follows this same scheme. (dryer is on right)
As I'm sure you know, the hinges are always swappable between left and right, just like refrigerators.