HAHA. I think its abit unfair to post in here. Obviously Miu Miu will get bias votes.
Personally, Miu Miu is definitely the younger buyoff from Prada. You just have to ask yourselves between these two brands. Prada is already so high up there in terms of reputation, you need to really have a 'kind' of look so carry it off. I've seen little girls carrying prada, you know they have been saving pennies for months to get that bag. But then, when you see a girl of the same age carrying Miu Miu. Naturally, you won't fault that. Because Miu Miu is cheaper, more funkier. In a way, people tend to find faults on bigger designer labels.
Prada bags are also quite formal for most of their design. It is already under the status recognition. Its no longer about this design or that from which season. Prada is all about, 'I want to bring out to Orchard and tell people that THIS IS A PRADA bag.....~'
Often a times, you bluff yourselves I'm not brand conscious, blah blah. But seriously, you spend so much on a bag, you want the LOGO stamped big on the bag. That's why
Gucci and LV succeed in SG. Over at US, Proenza Schouler PS1 alone sells better than some Prada bags.
Overall, just how you personally view this topic regarding competing brands...
But just to round off in terms of quality..... Prada hands down. =p Lol. Their saffiano range are TDF. Miu Miu still lingers between some stitching and QC problem. It annoys me sometimes when you bring out a brand new piece from the box, and find that it's less than acceptable to the customer.