The wonderful YouLookFab, challenges us to make a choice...
Team Heels or Team Flats?
By necessity I'm a member of Team Flats - the issues I have with feet and knees simply (and sadly) don't support wearing a heal higher than 2 inches (and even then I'm pushing it at 2 inches!).
But trust me, if my knees weren't so bad - I'd at least have tried those three inchers! ;-)