After 4 years of being a Mac user, there is only one thing that I still miss from the Windows world, and that is being able to switch with a single keystroke between all open windows in the computer.
What is the best app or utility, free or not, for accomplishing that?
I've used Witch, but I never was completely satisfied with it. It's a bit slow and the switcher UI is not very pretty.
Do you know any alternative?
EDIT (2016): This question keeps getting views and upvotes after 6 years. When I asked this question in 2010 I was still transitioning from being a Windows user. Eventually, I got used to Mac OS X UI and nowadays I don't use any third party utility for managing app windows, just Mission Control and the native keyboard shortcuts. So, although this question is no longer relevant for me I hope it is useful to new Mac users making the switch (Including this comment).