I've tried the 22's but to me seem to dark, So I use 45's exclusively. Now, I just bought an old VR 28 lens that I'm trying, that is in between the 22 and the 45. It seems to be good, just have to shoot with it more.
I always use the 45 outside no matter how bright it is. If you want something for low light shooting, not well lit indoors, look at the low light Prizm lens