tank nut,
Hey there.
It might be more accurate to say which diecast would you take with you this week, since we all seem to have different favorites depending on time of day, phase of the moon and how many times Lindsey Lohan has been arrested recently.
(Okay, my favorites seem to change that often at least.)
However, if I had to go for one, it would probably be my Apollo Recovery Sikorsky Helicopter diorama. I've had it on display here next to me since I picked it up a few months ago and instantly fell in love with it. (Link to the Tricatus pictures below in case you don't know what I'm talking about.)
http://www.tricatus.co.uk/aa33402.htm