The Sony Bravia 8 OLED TV stacks up well against the LG C4. It all comes down to what features, OS (Google TV vs webOS), and remote you prefer.
If you want a TV with the best visual fidelity that money can buy, the LG G4 OLED is it. The G4 offers the best color and contrast I've seen over the past year.
TCL QM8 might be one of the best TVs for the money on the market. Right now, you can get the 75-inch model for $1,299.