Actually I really liked the concept of the Y wings. They were around in the early days of the Clone Wars as heavy bombers.
When they first came out they were sleek and armored and they looked nasty
By the time ANH rolled around they looked worn down and stripped down and they had parts taken off of them and they had probably been stolen from a scrap heap somewhere and had parts cannibalized off of them to get other ones into space
The one theme that I really loved between the PT and the OT trilogy was that the ship design had gone from colorful and artistic to somewhat brutal and simple.