All this data is potentially out of date, and should be taken with a truckload of salt
The Mackinaw is definitely the top-of-the-line ice harvesting ship. At max skills and equipment it is roughly 21% faster at ice mining than the Hulk.
Important Note: As of Inferno 1.2, the Mackinaw no longer has the +100% ice mining bonus.
Below are additional ships images. Click the image below for a larger version:
|Mining Frigates||T1||• Venture|
|Expedition Frigates||T2||• Prospect|
|Mining Barges||T1||• Procurer • Retriever • Covetor|
|Exhumers||T2||• Skiff • Mackinaw • Hulk|
|Capitals||Capital Industrial||• Orca • Rorqual|