[e15ctr0n]

Barron's Magazine does a comparative study of online brokers every year and recommends the best based on your needs. This is the one for 2015 in which Interactive Brokers comes out at the top:

http://www.barrons.com/articles/SB51367578116875004693704580...

This is the methodology used for the ranking:

http://www.barrons.com/articles/SB51367578116875004693704580...

This is a comparative table where each broker's offerings are broken down and analyzed:

http://www.barrons.com/articles/SB51367578116875004693704580...