I remember Yellow being very good, but not necessarily a good Tales From The Crypt episode. Kind of like King Of The Road, it feels out of place. But on it's own, it is very good. Definitely a controversial pick for number 1, though.
I'll try to avoid spoilers here, but if Two For The Show is the episode involving a train and a gruesome discovery in a suitcase, then it was the very first Tales From The Crypt episode I ever saw, way back when it originally aired. It's definitely a personal favorite in those regards, but for some reason it isn't one I watch very often, which is why I'm not entirely positive if it is even the correct episode I'm thinking of. But seeing it as a young child, that macabre twist ending was a disturbing visual that I have never forgotten.