There is no definitively best looking Pokemon. It's all subjective and varies by each individual's tastes. My favorite Pokemon judging by appearance? Hard to say, even just for me. I agree that a shiny Umbreon is pretty cool to see. Garchomp looks exactly as powerful as it is. Can't argue with Empoleon's metal emperor penguin look, either. I like Roserade's sakura-style elegance; it reminds me of characters like Endrance from .hack//G.U.. Gallade definitely does the noble warrior, too. Magmortar's evil clown motif always makes me laugh. Medicham's flowing, yoga-style martial artistry is very nice to watch. Aggron, while not as much of a wall as everyone seems to think, it certainly looks tough. Scizor definitely makes the metal ninja thing work. Heracross just gives me Kamen Rider Kabuto flashbacks. I can imagine it performing Cast Off. XDDD. Blissey just makes me want to punch it in the gut and see if she's solid or hollow like an egg. Arcanine is a work of art. It embodies the flaming passion that lives in my heart. Starmie's got the "alien warrior" kind of look. Gyarados looks like the kind of random boss battle that every RPG has. *coughFFIX'sGizamaluke*