The LG UltraGear 27GP850 is the safer bet for competitive FPS. While the G7's contrast is appealing, its VA panel can exhibit black smearing in fast-paced games, a problem the LG's IPS panel largely avoids. Input lag is similarly lower on the LG. The curve on the G7 is a personal preference, but it can introduce distortion, especially if you are not sitting directly in the center. For competitive play, response time and clarity outweigh marginal contrast improvements.