Well, based on my experienced Nem, TRX, EOS, and Ethereum are all good and fast to me.
These all are good to use when you want to make a transaction with them, and in terms of fees they are all
cheap also, so you won't regret it for sure in the end.
ETH actually isn't fast, you'd have to pick whether you want it faster or not. The option to pick how much you wanna spend for a transaction means by default its slow and that tey only prioritize transaction when you pay higher for the transaction. I prefer EOS really, its the same thing after all I play games on EOS chain from casino to real online game.
fast transaction is important for different purposes, TRX and EOS simply delivers it well and same with some other blockchain like the Vechain.