I think Asynya is plenty good. She looks like a slightly better fighter than the Allfather, and the usual retarded logic is that everyone needs an SC pretender or they are doomed (not that I buy that, but oh well). If you want a pretender with Air and maybe another path who also fights well, she looks good, and saves points compared to Allfather. Allfather has some other abilities and can have more paths for less, though. Apples and oranges, allfathers and asynyas...
They might be more popular since so many people have a secret inner desire to be Odin...
PvK