I think any of those would work ok, but keep in mind that Ekuanot is pretty strong so Cascade or Amarillo (or similar intensity hops) would get lost at 1:1, so you'd need to bump the ratio. blatz is a huge proponent of Citra with Equinox (Ekuanot). I blended it with several hops but not Citra. I liked it with Simcoe, as well as Chinook and Mosaic.
Thanks Jon. I was thinking of doing a strongly Ekuanot influenced beer so that might be okay. I don't have enough to single hop it. If I want more of an equal influence from the other hops I will definitely plan on tinkering with the ratios.
Cool. I was gonna suggest actually trying it single hop because it's such a complex hop. But if you're limited on it, most any of those would work nicely. Simcoe 1:1 is a pretty fair fight, past that Ahtanum, Amarillo, Cascade, or Centennial (my other choices here) would lose at 1:1 but it sounds like that might be a good thing for what you're after. Let me know what you think!
Edit - For reference, it's all about hop oil content in terms of being able to roughly gauge intensity. You see slightly different numbers quoted depending on the season, grower, retailer, etc, but these numbers show how potent Ekuanot is - in a great way IMO.
Ekuanot - 2.8 - 4 (ml/100g oils)
Simcoe - 2.5 - 3
Centennial - 1.5 - 2.5
Amarillo - 1.5 - 2.2
Cascade - .8 - 1.5
Ahtanum - .8 - 1.2
Thanks. I have known this for a while but have never applied it.
My current APA is 1:1:1 of Comet:Cascade:Ahtanum and I feel that the Comet dominates although it is only shown to have 1.2-2 oil content. I guess it is a bit higher than the other two and there are a lot of other things at play that could affect how I perceive that hop in comparison to the other two.