Well to start off with I have the Echo 1 Mp 5 and it is a great great airsoft gun . The quality of this gun is outstanding and I really really use mine so the durability is pretty great too . I really like my Echo 1 Mp 5 .
Now moving on for the next one . My buddy has the Echo 1 G36c and it is pretty good too . I looks good feels good in your hands and has a pretty great firing rate and feet per second with accurate both semi and auto capabilities . It is compact and has a durable fiberglass body which really takes off some of the wieght that the full metal guns don't . I is easily and cheaply upgraded with little to no problems and also has great picanny and weaver rails that are great for scope and bipod mounting .
Now for the JG G36c . Basically it is almost the Echo 1 G 36c s match in almost every way . Now contrary and to popular belief most JG guns are not completely or almost the same as the Echo 1 guns but this doesnt describe the JG G36c . When you buy the JG G 36 c you get almost the exact same gun as the Echo 1 but at a little cheaper of a price that the Echo 1 G 36 c . Now you also but you have to keep in mind that the JG G 36 c is not and Echo 1 gun and will not last as long or be as reliable or durable as the Echo 1 G 36 c . But the JG airsoft gun also comes with a thirty day warrenty that the Echo 1s do not .
So I guess that it just comes down to the fact that it is what ever you decide . But keep in mind what I said above . If you need anything else answered please don't hesitate to question me . I don't bite . Often .