If its bass you're looking for, go for the ATH-Pro700MK2.
I was in a similar situation with the V-Moda M-80 vs the V-Moda LP1/LP2. I was reading reviews on the M-80 and people were saying that they were bass-heavy so I figured they would be enough bass. I bought them and was deceived.
If the Beats Studio were a 9 out of 10 in bass quantity, the Klipsch Image One a 8.8 out of 10, the Bower & Wilkens P5 an 8, the Sony MDR-V6 a 7.5, the AT AD700 a 6.5, the M-80 would be a 7.8 right out of the box.
Straight out of the box, the M-80 would be right between the P5 and the MDR-V6. I have about 15-20 hours of burn-in time and the quantity of the bass is almost, if not on par with the P5 and they're supposed to exceed them after being fully cooked.
Im probably buying V-Moda LP1s for my bass fix.