my default curry is lamb bhuna if i'm at my local curry house but i'll ususally look for something i've never tried before if i'm somewhere new. always have a peshawari naan as well... i used to be a madras man but my taste buds have wimped out on me in old age, i can't handle them any more 
some of the best curries i ever had though have been at my friend shanda's house, her parents are pakistani and the food's feck all like what you get down the jewel in the crown or wherever. loads of fresh vegetables in them, lovely
NB. you'd all be up shanda like a rat up a drainpipe, she's a honey, just thought i'd let you know
