eh, i didnt say anything about exp efficiency though
forgot the the source so take it with a grain of salt but base struggle did have better drop rate, though its all about rng in the end so it doesnt really matter
and you even say it yourself that base struggle is better for prince exp and gold
prince lvl up faster is a good thing, and having more gold is always better, because aw is a gold sink, so its better than oasis overall for me
well, both is good so there is no point arguing about this