I love Umineko ! This is my favourite visual novel and it is the biggest slap in my life. For me, all the grimoires are excellent even if I have a little taste for the seventh.
My favorite characters are:
! -Battler (Endless sorcerer of course)
-Beato
-Kyrie
-Bernkastel
-Lion
-Wright
-Hachijo Toya
and Ange
I have the Episode 4 and the Episode 7 at home.
I eagerly await the translation of the eighth book of spells Witch Hunt by the team who did a remarkable job.
But I strongly regret having discovered the series with the animated.