I started cryptotrading months ago, and I had the chance to test few of the best trading platforms and here is my ratings.
Binance (Excellent)
KuCoin (Excellent)
BitFinex (Excellent)
Poloniex (Satisfactory)
Bittrex (Satisfactory)
Kraken (Satisfactory)
HitBTC (Good)
GDAX (Good)
CEX.io (Good)
BitStamp (Good)
Huobi Pro (Testing)
BitFlyer (Testing)
CoinOne (Testing)
Upbit (Testing)
Bithumb (Not Rated Yet)
OKEx (Not Rated Yet)
Drop the list of your best trading platforms here.
I am pleased with your detailed findings about best trading platforms for newbies, and i believe to my understanding that binance, kucoin, and gate are the most convenient and easy to use exchange platforms because they are self explanatory to a large extent. But this is not an excuse not to further and conduct researches before trading.
Trading is no joke or gamble, always do your own research.