Who can say what the ideal figure is? It's a subjective thing. If you refer to the Men's Health kinda look then yes, those guys have a good figure but it's certainly not my ideal. Such a look isn't particularly hard to attain if you have the right metabolism and know how to eat and train. But I can assure you such guys will be on a tight diet leading up to a photo shoot and in some instances a little bit of anabolic assistance too. Still, such a look is very attainable for many.
I was watching the documentary about Arnold on Ch 4 on Thurs and the way he looked in his 20s is pretty close to ideal in my view. I had forgotten how good he really was. Other looks I admire are Berry Demey, Bob Paris, Steve Reeves and Reg Park in their heyday. Do a search.