What fat pack to buy, SOI or BFZ?

I’ve spotted no recent thread on the subject, but I have read people are somewhat disapointed by SOI cards.

However, a SOI fatpack could help me get some cards for the Terrors event

Your opinion?

I’d pick the one where I’m missing more rares, if it is close the one where I’m missing more uncommons.

This is utterly anecdotal, of course, but I bought BFZ last night since it’s leaving soon, and I got two dual land supports and a couple other great cards.

I decided to go for SOI fat pack and while I got plenty of cards to help with side objectives, only a few were actually good.

I was saving crystals to buy Sarkhan, but since I own kiora and ajani, I could level up Liliana and use those crystals to get me another fat pack so…under these circumstances, would you still go for SOI or BFZ?