CFAI questions vs Schweser Q bank

Apologies in case this has been discussed but I couldn’t find the right thread.

So I’m hammering through Schweser notes and feel reasonably ok with some content and want to do some practice questions to test myself - wondering if CFAI questions would be more challenging than Schweser Q Bank?

I basically have no time to study during day and am only doing weekends, so I can only choose one of the two - either QBank or CFAI Q’s - which one is harder? I’ll pick the one which is harder…