This might be a daft question but here goes...
I'm planning our new kitchen layout and we're having an inset sink. When marking out where the sink goes under the window, how do I make sure it's central? Is it the bowl that should be central to the window (and so the drainer slightly over to one side), or the whole sink unit (which would mean that the bowl bit is slightly to one side). 
Does that make sense?
Which option looks right?