2nd row bench was a must for us, a family of 5. We needed the ability to move all 5 of us around, with cargo area full from time to time. When we don't need some much cargo space, and/or going long distances, 1 of the girls can go back into 1 of the 2 split fold 3rd row seats, and still have some cargo space.
2nd row buckets (IMO) may be a bit more comfy (?), but I think they are more of a luxury look than anything.
To the original poster, do your 2nd row buckets fold down flat (to the same level as the 3rd row)? If so, (if you can't find a bench) could you simply remove your 2nd row center console, and have your flat cargo floor?