9. Dominica: It's as if they searched the rainbow for the ugliest shade of green possible, then combined it with a spectrum of more unappealing colors to conjure a vomitous flag. And what's the role of the red and purple that only appear on the extra-dull seal in the middle? Purple on red on green = bad design. There's too much going on here, and none of it is attractive.
7. Burundi: This is almost a well-designed flag. The unique-yet-simple design is there, the national symbol is there... but then they had to choose the colors. This particular shade of green is almost neon green, and it ruins the whole flag. It's like a technicolor Christmas! With three Stars of David! The coat of arms of Burundi is well-designed and features a fearsome roaring lion. Why didn't this carry over to the flag?