DisplayPort is definitely better in terms of refresh rates, but a lot of other factors are also at play. Don’t be the laidback gamer. Know your cables
Depending on which genre you usually play in, you can go for a type of gaming monitor that will gel seamlessly with your gaming experience itself.
What will be the best screen real estate for you? As big as possible. But what can you settle for, given your budget? Have a look at this analysis first.
Gaming monitors are not well-understood. Amid the technicalities and the marketing terms thrown around to sell low-quality monitors at higher prices, users (and especially gamers) tend to lose a lot. Know your monitors!