2 Answers

Ratings and reviews of top forex brokers can be found at links listed at 
https://www.google.com/search?q=the+best+forex+broker&oq=the+best+forex+broker&aqs=chrome.0.57j60j64.146&sugexp=chrome,mod=1&sourceid=chrome&ie=UTF-8. 

You can use the Rating Formula as a Tutorial for Trading and Brokerages

Here is an objective way to define who is a good broker and who not..

The project is called Rating Brokers Formula and it is designed by TradingCenter.org.

The Formula incorporates 3 major rating factors:

Rating Factor-1: Safety of Deposited Funds (25.0%) +

Rating Factor-2: Transactional Cost & Similar (40.0%) +

Rating Factor-3: Trading Options & Technology (35.0%)

Two categories of brokerage services have been rated so far, Forex Brokers and Binary Option Brokers. 

This project is currently at version 5.0

Version 5.0 Forex Brokers Rating Formula

Version 4.0 Forex Brokers

Version 3.5 Rating Binary Option Brokers

Read all criteria very carefully and you will understand perfectly what makes the perfect broker for the average trader..