I've always loved the Manhattan for how classy yet stylish it is. So I maybe biased. DH just bought me a Manhattan PM. We picked that one because we love how verstaile it is... it can be used on a casul day but at the same time still perfect for a professional environment, which is a very important factor to me. It is also a bag that I think is timeless which one can use for 20-30 years down the road and won't think that it's too "young" looking. I think the MC is a little too playful for work. But both the MC Speedy and Manhattan are beautiful. So good luck w/your decision!