Hi! In my case, sa BC ako nakakuha ng mas mataas na score. Pero subjective kasi talaga ang pagscore nila sa writing and speaking part. Suggests you really prepare for those parts and follow the formats na meron sa available reviewers online. But I cannot say na BC is more generous than IDP, mas prepared lang siguro ako when I retook the exam. Nakakahinayang din kasi ang exam fee hehe.