[TonyStr]

Technically yours (<Shift>, :, 1, 0, 0, <Enter>) is one more keystroke than his (1, 0, 0, g, g) if you count shift and enter. If you don't count shift, you can also do 100G. I personally prefer :100 even though its technically the most keystrokes

[JenrHywy]

That's an interesting observation. I can't justify why, but : feels a lot more fluid to type than gg, even though as you say, gg has less keystrokes and still keeps you on the home row.