The final book of Mistborn trilogy certainly deserves 5 stars. It had the best story and so many surprises that I lost count. I love how all the things that happened in the first two books were part of the bigger story and everything finally made sense. B. Sanderson did a great job at planning every detail. The ending was very moving and I liked it. 
 Now I need to read the "next" trilogy soon, I'm really curious about it:) 
 That being said, my favourite book of the series so far is still The Finale Empire (even though I gave it 4 stars because I didn't like the ending). Well, I can't change my feelings about certain characters...and Kelsier is my favourite character:)