To what extent do you believe one person should maintain the bulk of control in a relationship and who do you believe...
One should maintain the bulk of control if he or she is more of an expert in that area. Also, the personality plays a major part. One might be more dominant than the other though the other wouldn't really mind. In this situation, the dominant spouse has the bulk of conrol too. I believe like others have wrote earlier that if there's compromising and equality in a relationship, that's the best. Best of all, both partners must trust each other in their respected areas. It can be anyone who's actually maintainin the bulk of control as each and every household has different situations and scenarios. We definitely can't expect them to follow this or he must be in control since he's the better and dominant one. Fine, if he's better than so be it, but she must be fine with it too. If not, then it's no use.
Often, wives have control in kitchen and household stuff, like groceries and children and husband have control in financial areas and the rest. But this might not always be the case as you all should know. Both should be agreeable and have trust in each other to know that they can work it out, and there, your marriage will be successful.
Personality wise, of course the dominant spouse always have more control over most of everything, but so long as the quieter spouse is fine with it, then the marriage is ok because usually as is the case, if a quarrel is starting, the quieter spouse is the water while the dominant spouse is the fire if you know what i mean. Meaning that the quieter spouse is able to diffuse the tense situation much more easily.
As long as both partners are happy in their role and are able to compromise, the marriage is fine.