Thor without Loki
I did miss Loki in this movie he is arguably Marvel's best character, but there was so much going on in this one without Loki that it would have been too much with him in it.
It's just that all of the Thor movies have been focused on their hilarious relationship so it didn't feel much like a Thor movie without him.
It was good that they upheld his death in the story line. Thor's back tattoo of Loki's helmet was great.