Both are shit, when the band were a shitty pretend punk band before Martin Hannett came along and created one of the great post punk bands.
The “Joy Division” version actually predates the “Warsaw” version, the Joy Division version was recorded in December 77 when the band were known as Warsaw (but released on the Ideal for Living EP in mid 78 when they were known as Joy Division), and the “Warsaw” version recorded in summer 78 when the band was known as Joy Division (their planned debut album which wasn’t released).
I think everyone here agrees that Scotland has produced far great quality than Ireland — tho U2 / Cranberries had far more commercial success than anything Scotland produced.
You forgot the Sensational Alex Harvey band you clown…
and John Martyn (born in Surrey but raised Scottish), the Waterboys, Del Amitri, Average White Band, Incredible String Band, Nazareth, Marmalade, Travis, Biffy Clyro, not forgetting Wet Wet Wet.