Deep, broad (wide), and well rounded and not overly obessive in weight and size.
As for "typey", I like to see balanced in birds, making sure the heads are appropriate for their body...who wants an oversized beaky, bug eyed looking of Orp???? The pullets should show feminity and a little more refinement or detailed in her face and not overly heavier than the males. Good temperment, decent heavy size and good egg laying capability with a WIDE rear ends make a good egg layer as well.
The males should be mascline and show good temperments as well as HUGE size but not grossly obese looking similar to a Cochin. And good colors are important too.
You certainly dont want one that looks like a Thoroughbred nor a Clydesdale in type, size and gait either! With a practiced eye, you can pick out your better Orp out of the lot even it means to dismiss your favorite hen with bad legs or whatever for breeding purposes.
Reading the standards help but going to shows help even better and do not be afraid to ask the judges and long time breeders for their input and advise and suggestions.