Got an 03 Expert HDI and a T30 174BHP transporter.
Expert - great van, love it because its practical, twin sliding doors, 900kg payload, goes reasonably well and still get 35mpg. Looks a little dated but I can live with that. Low running costs and galvanised too so won't rust.
Transporter - the best van I've ever been in, I know its expensive but well worth it. payload I think is 1.5ton and drives beautifully, build quality is second to none and looks fantastic (sportline kit). Fuel economy is good too at 35-40mpg.
Anyone looking for a van wouldn't be disappointed with either of these vans, especially as both are galvanised making them ideal for wfp (as someone else has already mentioned). the new experts are meant to be superb also.