I also shouldn't have to tell you that this list is going to have SPOILER ALERT at the top of pretty much every entry, so take that as a warning now for this one.
So sit back, relax, and let us begin our # 5 moment with...
First and foremost, why was it necessary to put Harry in the deathsport competition in the first place? Voldemort claims to need Harry alive in order to be resurrected, wouldn't putting him through a series of trials that could very well kill him (as it is acknowledged by multiple characters this tournament is quite good at doing) kind of defeat this purpose? And what if, heaven forbid, Harry actually loses, as he was very well about to when Cedric came along?
"NO! THAT WON'T NEARLY LOOK COOL ENOUGH!"
The first three books had well-executed twist endings, and I think in this event, Rowling tried to outdo herself. In crafting an ending that looked cool, coherency was put by the wayside, and an already overlong and plot-hole-riddled book gets a few more massive holes punched in it. I won't necessarily call it a bad ending, but I will call it a very disappointing one.
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