Ya, I think they really come from two distinctly different directions. Nile always just being an Egypt sytle death-metal band with big cinematic presence. Where Behemoth was an intense polish BM band that turned Death/Black. So they have always had a different underlying base.
Nile being multi-instrumental right out of the gate as I remember, where Behemoth was simple BM then adding more creative instrumentation as they progressed on.
If you could even say this? I look at Nile as guitar-centric and Behemoth as drum-centric. IMO, Behemoths drums are front and center with the vocals. Also Behemoths drums may be a little better in the end. Maybe?
I hate to say this but Nile may be a one trick pony where Behemoth is more complex. Behemoth will grow and expand maybe into another sound where Nile may just fall back? This is a lot to say, but still, I kind of see it now?
All this and Behemoth has had recording difficulties, health difficulties and has not put out an album since 2009, where Nile's was out just last year!
I think that's a great evaluation. And, I enjoy Nile as well in small doses-they just aren't quite as satisfying to me. I'd love to see another great Behemoth album come out.