LaTeX4Linguists: https://github.com/SimulatedANeal/LaTeX4Linguists

vim/(x)emacs or kile

XEmacs + AucTeX + Preview-LaTeX (provides syntax highlighting, command completion, preview)

latex + packets ( ConTeXt or Beamer or PSTricks )

(X)Emacs/AucTeX/RefTeX

LaTeX with Beamer (https://bitbucket.org/rivanvx/beamer/wiki/Home/) or P^4

LaTeX & prosper