Choosing a 144Hz monitor under $300: 24-inch vs 27-inch for FPS

[Joseph_G]

I'm building a new PC primarily for competitive FPS games, and I'm looking to upgrade from my old 60Hz monitor to a 144Hz display. My budget is around three hundred dollars, and I'm trying to decide between a 24-inch and a 27-inch model. For gamers who have made a similar switch, what are the key specs I should prioritize besides the refresh rate? Is the panel type, like IPS versus VA, a bigger factor for fast-paced games, and how important is response time versus potential ghosting? Are there any specific models in this price range known for good motion clarity and minimal input lag, and does G-Sync or FreeSync make a noticeable difference if my frame rates are consistently high?