I find Amarillo closer to Simcoe (sorry for not being clear).
You're right, I've never used Simcoe, but tried both in commercial brews, finding them quite similar in taste in the brews I've tried. I forget which commercial brews I tried them in now, but they came from Dans.
Amarillo seems to have fallen out of favour - it isn't an "in" hop anymore, whereas it used to be everyone was using Amarillo in any Pale Ale. I found it nice enough, but I think I may have mixed it with Citra in the wrong proportions and the Citra dominated too much. Lesson learned there.
I fail to recall knowingly trying a craft beer with Chinook, but chances are, it has found its way across my palate at some stage.
Sorry for not writing clearly, manticle, IIRC SWMBO was hovering and starting to snort like a bullock, so I kind of punched in the data too quick without proof reading it.
Goomba