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I have used Bittrex and Polo with no problems, though Polo got really slow recently because of heavy trading. You can also try out Bitshares DEX (decentralized exchange), but not as many people use it, so trading is not as efficient.

I'd recommend holding BTC, LTC and ETH, and you can also look into Factoids FCT, XEM (NEM), and Dash.

Thank you i have looked into dash but it seemed a little weird to me so i stayed away

Its marketing strategy is better than most cryptos, in that the Dash team are really trying to make it accessible to the average user. If they can manage that, its price is bound to rise. I'm long with Dash, and I am mining it.

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