Is there a politer or more formal way of asking: Would you like … ?
As when offering something (a glass of wine for instance), to someone of higher category. When extreme etiquette is required.
'Would you care for a glass of wine?' is probably how Jeeves would have made the offer. Most members of the British polite class, in 2013, would do the same. It is the sort of thing taught at places like Cheltenham Ladies College.