Which you use depends on who composed it, and what you want their style to look like. Bacata is suitable for things like clay tablets or wax. Galach, Guild and Minbari2 look like they are done with a brush rather than a pen. Wizard Speak looks penned, Leviathan and AutoREALM Futhark looks like something done on a cave wall using the burned end of a stick.
Dark Arts.... you need to find about a dozen other pictographic font types, mix and match them, and use characters as words or syllables instead of letters. That'll work for petroglyphs and the like.