New Hard Drive - Which One?

After a new hard drive 2 - 3tb, but with so many different kinds on the market which is best. Obviously I was looking at Wd but even they have My Book, Passport, Elements etc. Any ideas would be welcome.

Thanks Paul

I buy whatever external drive is cheapest, and Seagate Expansion drives have been the cheapest 3BT drives I have found in the recent past.  They have been working fine (attached to server and shared out via Samba).

Else can see the List of compatible devices for WD TV Live Streaming Media Player,393/session/L3RpbWUvMTMzNjM2NTg2MC9zaWQvSGE3YWt1WGs%3D#harddrive