The LV canvas (exclduing those with the vachetta bottom) and the epi leather are more durable. However, other LV such as the vernis, I would say is less durable.
In terms of weight, I have found them to be comparable (unless you get an LV with the koala pockets), which is one of my favorite things about both brands.
While I love both brands, LV can't beat Bal in terms of sassiness. Even my red LV bags don't make the same splash that my rouge vif city does....