When I started using e-cigarettes, I faced the same issue. The amount of information that's out there is overwhelming.
Speaking from years of experience and after trying almost every brand out there, here are my top picks for you:
1. V2 Cigs
2. Green Smoke
3. Vapor Couture (for female smokers)
4. Blu Cigs
Here's what I think of each brand:
1. V2 Cigs: great vapor production, high cartridge strength, long battery life, great prices.
2. Green Smoke: best cartridge flavor and quality by far, high vapor production, excellent customer service, great quality overall.
3. Vapor Couture: the best and only option for female smokers (made by V2 Cigs).
4. Blu Cigs: low battery life, decent cartridge flavors, Made in USA cartridges, nice product design and feel, smart pack.
All the brands mentioned above are very similar as far as quality, design, and pricing. I'd recommend that you order a disposable pack from each of these brands to see which ones you like most. This is the best way to compare the quality and performance of each brand at first hand.
Hope this helps
Lindsay