I only support three endings.
I. Wild Wasteland; the dream is real! I've salted the earth, not once but three times, nuked both the Legion & NCR, and insured the Mojave will never recover. I always end it on the note of joining Elijah because why the fuck not; if its all a dream then I might as well make sure no one but ghosts can live there. I secretly hope we killed the Brotherhood as well while we wait out to build out fear, slave, mongering utopia with explosive collars. True paradise man. True paradise.
II. House. My personal favorite end goal of "The planet is fucked and we're leaving once I build the rockets.".
III. Legion. You have to admit they are efficient. Look at the bright side; no liberty means no degeneracy. The ultimate "I discriminate against everyone equally." card. I'm honestly disappointed that there was no option to have a high ranking Legion character take over Caesar's Salad personality cult. Can you imagine if someone more moderate on technology, but still brutal on only the strong can live, took over successfully? The NCR, and anyone else, would be fucked. Who knows maybe this was one of the many Legion things they never got around to.
I like the NCR, I really do, but they are repeating history. Its why I never cry when I nuke them but get butterflies in my heart instead. (Same for Legion as they're simply repeating old history stupidly.) Now I need to get back to Fallout: II to get some nostalgia from my next Fallout: New Vegas play-through. Might finally get around to not talking to Master to suicide in Fallout: I as well..