Multiple car seat arrangements?

Helen

We are pregnant with baby #3 and currently have a highlander with bucket seats in the middle. We have a third row but there's not much cargo space when its up. (my boys are 6 and 4)

So my question is...what's better and easiest?

Bucket seats with 2 in the middle and 1 in the back? Or having a bench in the middle with all 3?

And bonus if you have any suggests on an SUV love!