another vote for the bayswater. my first mulberry bag was a large soho shoulder bag in coated canvas so if i'm to buy my first again but serious mulberry bag it's gonna be the bayswater. a classic piece and will last you for years!
I'm no Mulberry expert but I am in love with the Bays. They are so classic, beautiful and timeless...they will last forever and will never go out of fashion. Good luck in your choice.