Predator's Rapport and counters
Yes. When a card refers to any creature's power or toughness, it always means the creature's current power or toughness, not what is printed on the card. This includes any +1/+1, -1/-1 or other counters that modify power and toughness; any equipment or enchantments attached to the creature that modify power and/or toughness, and any effects from cards such as Giant Growth, Glorious Anthem, or Bile Blight.

Note that damage on a creature does not change its toughness.