Average Manhattan GRE Scores (6 tests): V: 158 Q: 161
Powerprep 1: V: 160 Q: 169
Powerprep 2: V: 154 Q: 165
Real GRE: V: 162 Q: 161
I felt that the best indication of how one will perform on test day comes from the Manhattan GRE online tests. The average score from the six tests were the closest to my actual score. However, the best practice material is definately from ETS Powerprep. I should also note that Magoosh is also accurate with their range of scores that they provide after you do their practice questions. Don't waste your time with Kaplan.