I get the sense that you are looking for a cheaper alternative to Zeagle's BCs and still get similar features/performance. If this is true, then let me just say that buying a brand that very few people have heard of is not really the best way to save money. Even if it is an exact copy of a Zeagle, you still do not have the level of support that you would get from an established company.
Scuba is very demanding on your pocketbook. It is doubly demanding if you have to re-purchase gear as you progress your diving. After you have a good understanding of what you want/need, bite the bullet and pay the money for the quality brands. You'll save money in the long run.
And by the way, it is far more important to figure out what your needs are than it is to figure out the difference between a zeagle and an eagle. Once you have an understanding of what your needs are, you will have a much better understanding of what brands you should be looking at for comparison.