I like 3PK but sold it, with 4PK in the market I like it more.

As for Sanwa M11 series I used b4 having it sold, they are more heavy & bulky. Yet still as of now the manufacturer does not change the design. The design looked old fasion.

Yes, I did hands on with DX3R it's the lightest & cheapest among these radio.

Most importantly it's your personal preferences which matters.