QWERTY with caps as control. Ctrl+[ is considered escape on older keyboards so vi style software includes emulation/acceptance of this behaviour. Lets you hit

QWERTY with caps as control. Ctrl+[ is considered escape on older keyboards so vi style software includes emulation/acceptance of this behaviour. Lets you hit escape easily, one finger on each hand, while still having easy access to other ctrl modified behavior (page up, page down).