[BoppreH]

Well, in Firefox I just move together the tabs I'm likely to switch between. This way I can use Ctrl + Tab and Ctrl + Shift + Tab to navigate between all tabs with a very specific and simple behavior.

Yes, it takes a little time to move the tabs next to each other, but I think it's still better than breaking the "suspension of disbelief" when things go wrong.

So, I think the solution for the Alt + Tab problem would be use MRU, but with a movable, always visible order: basically, let me drag the apps in the task bar.

[metachris]

I always felt that left hand ctrl+tab is an awkward position for the fingers. I prefer Ctrl + PageUp/PageDown to switch, and like Chromes Shift + Ctrl + PageUp/Down to move tabs.

[BoppreH]

I don't know about you, but my Tab is on one side of the keyboard and the PageUp/Down are on the other. Pressing this keys would require me to have both hands on the keyboard, which, after I uninstalled Vimperator, I don't have anymore.

[yummyfajitas]

It's not awkward if you remap caps lock to control.

[RK]

Or have a keyboard that places them "correctly".