I find text navigation in Apple less consistent than in Windows. It makes it harder to be efficient :

By default:

- Chrome / TextEdit

⌘ + → = end of line

ctrl + → = end of line

⌥ + → = next word

- Sublime / Xcode

⌘ + → = end of line

ctrl + → = next word

⌥ + → = next word

- Firefox / Eclipse

⌘ + → = end of line

ctrl + → = ∅

⌥ + → = next word

OK I realize now that I should never use the ctrl key for navigation... It's disturbing and useless !

This means you should tell a new Apple user:

For text navigation:

mac ⌥ = windows ctrl

mac ⌘ = windows alt

For pretty much everything else:

mac ⌘ = windows ctrl

Except: ⌘ + tab = alt + tab

He might kill you.