Power cleans will hit your lower back and shoulders with just a little upper back. Barbell rows will hit your upper back hard, with just a little lower back.
As far as what's better, that's hard to say because they're different movements in many ways. I would, however, say that rows are far more important to include compared to power cleans.
Bodyweight- 231, currently cutting to under 220
Raw total- 1280
Equipped total- 1490
Best gym lifts, single ply-
Only goal- ELITE as soon as humanly (and chemically) possible.