git-am vs. git-applymbox

git-applymbox - Apply a series of patches in a mailbox git-am - Apply a series of patches in a mailbox

What are the differences between thos two commands, UI-wise and capability (feature) wise? Which one should I use? Which one do _you_ use?

And why git has yet another set of commands which do the same (well, git-annotate vs. git-blame "war" was won by git-blame, and git-pickaxe was born).

By the way, could we standarize somewhat short options for git commands, like -q for quiet, -v for verbose, -i for interactive, -S for pickaxe (search in diff), -n for some kind of no-op/do nothing (e.g. --no-commit), -f for force, -l for list, -k for skip errors/keep working even in the case of errors? It would be nice to have this in Documentation/API somewhere...