The Knoll is such a wonderful hole and seldom used by those three. I'm currently making the argument (to anyone who will listen) that Emmet created a Knoll at Wheatley Hills (13th.) Thankfully Ian Andrew is restoring the wonderful quality of that hole (and the rest of the golf course,) which had been lost when Hurdzan/Fry did their bunker work. I'm also making a point that Emmet did build some other templates at Wheatley (8th - The Short, 10th The Eden.) I know we don't think of Emmet as part of the Template Crowd, but he also built a wonderful version of The Road at Huntington CC (7th.)
The Knoll (13th) at Piping Rock Club is such a great example that a hole need not be long to be difficult, especially when that back hole location is used.
I agree that the Biarritz is another template that isn't used nearly enough. I suppose the nickname "Macdonad's Folly," is probably the reason that didn't catch on... Coore/Crenshaw did a wonderful job bringing that template to Streamsong.
The Leven also isn't a highly popular template, even though it's one of my favorites at NGLA.
I'm not sure Raynor's Prize Dogleg qualifies as a template, but it is certainly a hole type that isn't well preserved.