Other exchanges are still not able to do the same thing as Binance because Binance has a very large partner and Binance also works very hard when building all the things that their users need.
We all agree with that.
I also trade in binance and the others, I sometimes use them when I don't want to trade in binance and the coin I'm trading isn't supported there.
There are other good choices too aside from binance and reading from the comments of the others, you'll get to see the other exchanges like kucoin and ftx.
I use FTX exchange as platform to withdraw coin because there are less fees what ever your withdraw coin, when buying fee eth to swap ERC20 coin I use FTX to buy some eth as fees transaction and withdraw most faster there than other exchange. For trading keep use Binance because have many coin to buy, I am not with two exchange for trading because I still use Kucoin and Hotbit depend which one coin listing.
As you're saying that you're only using FTX for buying Ethereum then still goes back to kucoin and hotbit.
Kucoin is a good exchange and it's an underrated exchange but the most important thing is where we're confident of using and they're very convenient to use.