Fluticasone or Flunisolide?

I've been using Omnaris for my steroid nasal spray. Before that Rhinicort
Aqua.

Now with a major lowering of insurance benefits, there will be a very high
co-pay for a brand name med. Much cheaper to get generic.

On looking them up, it looks like in the USA there are two generic steroid
sprays available--fluticasone (Flonase, Vermyst?), and flunisolide
(Nasalide, Nasarel).

Which of those two do people find work better?

How do they compare with the newer brand name sprays?

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I guess there are no generic antihistamine nasal sprays yet. Astelin,
Aste-Pro, and Patanase are all brand name. Shouldn't astelin be coming off
patent one of these days, and be available generic?