Hey VV, welcome to the forum (go Flames!).
I've been vaping for close to 4 months, I've tried all sorts of devices, and I'm nowhere near figuring out an answer to your question. For one thing, it's a moving target, as other have mentioned, because 'best' for you may not be 'best' for me. Do you want your vapor warm or cool, do you want an airy vape or a tighter draw, do you want more vapor and less throat hit or vica versa, and so on.
It takes time to figure out these preferences and, because vaping isn't plug-and-play like a pack of smokes, you'll need lots of experience before you can use some of the advanced devices that a lot of people end up using (rebuildable atomizers etc).
For starters, IMHO, i'd skip all the eGo stuff and go right to one of the simpler Advanced Personal Vaping devices like the Innokin MVP or VV V3. These battery devices have a bit of a learning curve, but they're reliable, have great features, are simple to recharge, and can give you a really great vape.
There are lots of choices in terms of what to use with your battery pack. Personally, I would recommend a clearomizer to a new vapist. The Kanger Pro Tank V2 (not so sure yet about V3) or Vapeonly Aspire BDCC are a couple of worthwhile choices, but there's dozens of choices, and they all have their fans. If you try a certain device and it doesn't work well for you, or you simply don't like it, try something else.
One last thing, ECF will provide you with a wealth of support and information, including some E-Cig Blogs for newcomers. A good starting point is
http://www.e-cigarette-forum.com/fo...-carto-tank-what-guide-juice-attachments.html The Blogger has covered several topics that you'll find useful, and in my experience anything he says about vaping is golden.
-- Glenn