I have been using the same Salomon SPKs for the last 4 seeasons.. They have been my true friends all along.. Also, I have heard both positive and negative things of both SPKs, Dalbellos and FullTilts so who knows. I think it depends on what kind of foot you have..
But consider this: do you like stiff or soft boots? And as the other ones said, go see a bootmaster or whatever you wanna call those people. Good luck