Here another opinion. I imagine
diogenesdenepa will be totaly confused
But he shall choose what he thinks is best for him.
Problem with UV filters is not necessarily degradation of colors. Main problem is flare when shooting with a strong lightsource in the frame (e.g. sun, on sunshine, sunset, etc.). I have Hoya & Heliopan UVs. Heliopan is better. But best is no filter at all. Much better!
Protection: I prefer to use the lenshood for this purpose. Dust in the lens - I have never heard of this problem at EF10-22 (might happen, I don't know, just never heard of it); anyhow a filter will not protect the lens so that dust does not get behind the front glass. Bad built lenses (e.g. EF 50 f/1,8) will get dust behind lens with or without protective filter.
Finally, as far as I am concerned, I screw an UV (slim) filter on only when shooting in bad conditions: bad weather, when I am in the boat (water splashes) and similar situations. Hoya (slim) UV would be good enogh for this purpose, I would not spend so much money on Heliopan UV a second time. I have never had B+W filters, could be that these ones generate less flare, but they are very expensive, higher priced than Heliopan.