Which of these amps should i use to run my Rockford P3D4-15?

If it was in y car I would run the P700-1bd first choice and second would be the p500-1bd. Keep in mind the sub box makes all the difference. If you run a vented enclosure you will require more power to drive the sub . I have found the sealed (completely sealed) box sounds best for rock,country a quick hitting base and the vented with the correct ports and power sound best with rap and r&b ect...