It's not a one platform fit's all, as in not every coin will be listed on all platforms, currently i have about 10 platforms i'm signed up on & trade out of.
I did do a post around this & setting up accounts for just starting out , here is the link 24869874 , have a read & let me know if you have any questions.
Probably the only thing that has changed since that post is i use Bittreix more then any other platform as it seems to have the most exciting coins listed on it.
