Garchomp could have been awesome! But no, they just made his chest a bit deeper orange. Look at this one that someone made:
That's cool. It makes him look like a Scizor-Dragon. Why can't Garchomp be like that?
My least favorite shiny is definitely this:
Breloom looks great when he's green and red. But that looks like someone threw up on him and he doesn't even care.
My favorite, though:
Red. That other color was the only bad part about Lugia, and now it's red. Good job, Game Freak. You finally got one right.
Others I like:
Again, red. And green, too. Second best thing to red is green, and Scizor has both.
Others I dislike:
These are such eyesores compared to the real ones. "Oh, I know, let's make a big, angry mole magenta and blue! Let's make an awesome flying scorpion sky blue and lemon yellow!" The colors don't even fit together.