I find it extraordinary that iro Haarla doesn't appear on the list, for her own work and the mostly uncredited work she did with Vesala's Sound & Fury.
I can listen to Vesala, Jone Takamaki and Juhani Aaltonen any day. Bjorkenheim (solo and in Krakatau), Hauta-Aho, Donner, Tapio, Lahti on most days. And from a younger generation Verneri Pohjola and Mikko Innanen are worth a listen too