The arndale as it's the north west biggest pound shop.
In fact I don't think it will be long before it becomes a huge food court or the biggest pound shop in the uk.
Trafford center as that has now become nothing more than a food court as most of the shops have closed down and become eateries on the shopping side.
Town hall , because of the cash they waste. It's a black hole of cash.
All the stagecoach bus depots for the thieving they do to commuters everyday on the roads in the name of fares.

Not really a building but a route , the MCR one way system around the city center is nothing but a petrol burner. Have a 2 way system with free flowing traffic.
The disgusting curry mile having worked there I know what lives in the kitchens. One just has to wonder around the back to see the filth. No wonder the hospitals up the road from it.

Controversial one here but all the terrace housing, no matter what you do to them they will always look depressing.

Any one disagree?