Good wine deserves good glass. Crystal is fine but it can interfere with your perception and appreciation of the colour of the wine. I prefer clean, clear and large glasses. Clean glasses are essential because there is almost nothing worse than being offered wine in a glass which reeks of washing-up liquid.
Nor is it pleasing to be given wine in a small glass. This is not just a matter of greed, but because wine needs to breathe and you must be able to appreciate the bouquet given off. A large glass should be used and only half-filled, so there is space between the surface of the wine and the rim of the glass, where the aromas can gather.