The Gold Medal chippy in Ashton used to be decent, but now it's rank and I told them so recently. The assistant who served me agreed saying they've had a lot of complaints recently.
Not many good chippys about nowadays, but the Battered fryer in stalybridge is good,only opens daily on weekdays and teatime on Fridays.
Best chippy by far I know in the North West is the Codfather in Northwich. I know the owner and the only fault I have is he's a rag, other than that his fish and chips plus everything else is superb quality and worth the trip out.