I agree with @Jcm10313 whole-heartedly. I don't usually cry at the deaths, I cry at the reactions. I didn't cry when Fred died, I cried when Percy yelled "Fred! NO!". I didn't cry when Sirius fell into the veil, I sobbed my lungs out when I saw Lupin holding Harry back. I didn't cry when Cedric died, I cried when I saw Harry's reaction. I didn't cry when Tris died, I sobbed when I read Tobias' reaction.
Oops, the last one was the wrong wiki.
Anyways, the worst death for me was Remadora.