Pray? LOL!
You can opt not to leave the game for NG+ at any stage of the end game and I would buy all the vendor stuff and consider killing some of them before moving on....grinding certain invaders will be easier in NG like the
warrior and
...the covenant of
will be easier in NG right....consider all that before moving on...you will have lots of warning.....
but getting back to bosses.....
AD aint dat tough if you rape the AI.
is downright a bastard/bastardess whatever and was the toughest boss in the game for me to melee....I eventually used a teeny weenie bit of pyro.....who am I kidding I chaos stormed his/her ass....but even with that he/she is still a tough boss.....some might say even cheap...but I am still fresh off fresh wounds so might be a little clouded in judgment.
Yeah dont watch these vids prior to giving it a shot yourself first but if you are having trouble have at er:
raping the AI on
(heavy spoiler...it makes the boss trivial)
Mostly
melee of
(most intense boss fight in the entire let's play...was down to a sliver of health twice.)