Come on Bro! That is almost too hard to limit it to five...not to break the rules, but here are the TOP 10 in no order.
(1) Invocation of the Continual One
(2) Eyes to See, Ears to Hear
(3) Summoning Redemption
(4) The Lions Den
(5) Secured Limitations
(6) Rapture
(7) Suffocation
(8) Chapel Of Ghouls
(9) Prayer of Hatred
(10) God of Emptiness