Least Favorite:
Dragonite (I honestly don't know why, by the green just doens't look right at all to me, and I love green!)
Anyways, my favorite shiny colors are definitely pink. <3 I'm extremely biased, they look pretty great now even with 3D models. Here are some of my precious babies:
Don't have the shiny Aipom yet, but someone awesome here on PC gave me a shiny Furret and Jumpluff. Love you lots. Kinda feel like the normal shiny Ampharos got a little too dark with the gen VI update (was dark previous gens but the sprite version just looked more appealing overall, albeit slightly) but I love it a lot too.
I have a shiny bellossom which I adore, so much so that I changed my trainer's appearance to compliment that shiny :3
Aslidhfsjk Furret! Amazing shiny <3 You forgot shiny Sneasel though, it's my personal fav <33
I like blue shinies, and this one is a particularly great example c: