I currently use this statusbar settings:
set laststatus=2
set statusline=\ %f%m%r%h%w\ %=%({%{&ff}\|%{(&fenc==\"\"?&enc:&fenc).((exists(\"+bomb\")\ &&\ &bomb)?\",B\":\"\")}%k\|%Y}%)\ %([%l,%v][%p%%]\ %)
My complete .vimrc file: http://gabriev82.altervista.org/projects/vim-configuration/