I never even hated Druddigon during Gen 5's time, but looking at it now I think it's a cooler design than most give it credit for, and I feel there's believable justification for its appearance and color.
So appearance wise, Druddigon is very spikey, and this has lead to it being called a "kid's drawing" as a typical insult. But given its lifestyle of living in underground cave systems, the spikes and jagged wings and head would be an adaptation that allows it to burrow through soft dirt with ease.
As for its color, well there's a lizard in real life that has a red head and blue body. So yeah, Druddigon's not that bad.
