If you have the budget to get either 3PV or MX-6, I suggest you to go for Sanwa MT-S. I get mine from RCMart for $80 without receiver. Then, I bought a use RX451R for $30. Which end up at the same price point of 3PV and MX-6. MT-S is much faster compare to 3PV and MX-6. But, if you still insist on getting either 3PV and MX-6, in term of performance, 3PV is faster. In term of ergonomics, MX-6 is better.