The class 47 has to be the most suitable I would have thought Ben for both express and normal passenger work - pretty well at home on anything really, even freight. The 31 doesn't really fit the role of 'express' anything and the Deltic was not really designed for normal passenger work (unless you consider blasting up and down the EMCL at 100mph plus normal). Which leaves the Class 33. Personally I'd put this in the same league as the 31 but I'm sure that's going to upset somebody. I understand they did some sterling work on Waterloo/Exeter services but I wouldn't really class them as 'express' locomotives.
Are you not prepared to consider the other classes that are available such as the Class 40 and 45. You could even go back a bit into the diesel hydraulic era with the Warships, Westerns and Hymeks. All good all round loco's.
Are you not prepared to consider the other classes that are available such as the Class 40 and 45. You could even go back a bit into the diesel hydraulic era with the Warships, Westerns and Hymeks. All good all round loco's.