So, one of my problems, currently with my Bitfinex holdings relates to my Ethereum Classic holdings and my Monero holdings. I don't have any other wallet or exchange or location in which I can hold such coins. For the purpose of just managing those two coins, I am thinking about opening either a Poloniex account or a Kraken account.. In that regard, I am thinking that I have to have a means to liquidate them quickly and easily, if I so choose.. .
Poloniex is OK, but there is no option to withdraw or deposit fiat via wire transfers, AFAIK. (Only USDT, tether) Furthermore, they have margin lending. XMR is one of the coins you can lend. But not ETC.
I have little experience with Kraken, but the word from the grapevine is that their interface can be particular slow/unresponsive at times: more so than other exchanges.
Bittrex is OK too, but AFAIK, I think they also do no have wire transfer options. Plus, there is some controversy as of late because there was a major dump on most of their alts in a short time; and they are doing a "security audit" that has locked quite a few people's accounts. Furthermore, if you have a dynamic IP, it may be a bit of a hassle to log in.