since there are kids involved, its better for you to apply because logically, it won't be sane living kids behind to come to Canada just because of studying, the Visa officer might think vague needing a good reason to convince him that there is no hidden motivates except if your previous academic records are poor then your husband can apply
Don't get me wrong, your husband is also in a pool position to apply too but either way you people are planning of doing it, what matters most is to be able to sell your stories in a convincing way that the VO would be impressed