This is gonna get nerdy but that's why Im here!
Of the top of my head Faithful is one of those where I get goosebumps every now and then, especially during the intro and outro. And the other parts are pretty damn fine too. Just the right nasal tone and ambience mouthing throughout. The intro/outro vocal delivery is just so intimate and where others would've made it sound cheesy and forced, his voice just shines through with vulnerability and determination at the same time. The melody floats so balanced between his nasal tone and a more resonant one without loosing nerve. And the rest of the song's vocalizations just rhymes so right with the music...
I mean Faithful isn't really the song I would play to get someone hooked on the band, but surely a reminder for myself why I love this band whenever I hear the studio version.
Other performances that come to mind is Whipping (when he roars shoved...) and Save You (restrained and frustrated but really honest).
So, what are yours?