From the scrapped Pokemon from Gen 1, I like Crocky, Jaggu, Gyaon, and Deer.
From the scrapped Pokemon from Gen 2, I like Rinring, Bellboyant, Kotora, Raitora, Wolfman, Warwolf, Sunmola, Anchorage, Kurstraw, Pangshi, Bomseel, the Honoguma line, the beta Farfetch'd evo, the beta Qwilfish evo, and the beta Girafarig prevo.