I will give it to Binance any day and any time. Well, may be because I have been using it since August 2017 and haven't had any issues with it till date. Again, the ease of navigation on its platform is another thing I consider fantastic. On the other hand, I don't think Changelly qualifies as a real exchange in the true sense of it for buying and selling. I like to look at it as a place of barter for coins and tokens.
I have only 2 exchanges, and that is Bittrex and Binance but I usually use Binance since my funds are already there. I'd never had the intent to withdraw once I have profit but just have to keep in there. Maybe I was confident of their security that is why I have no worries even I store my funds for a year but sometimes I also think, What IF...what of the previous hacking scenario will happen again.
Don't be quick to forget that hack incidence at Binance in 2019. If not for the quick intervention of CZ who saved the day, I guess the reputation of Binance would've been grossly affected by now. From time to time, you should try and withdraw coins/tokens you aren't trading to your private wallet. Remember; your keys, your wallet.