Sulyvahn and Aldritch.
Summoned Anri and the Black Hand guy for Sulyvahn. First time I've used any Summons in this game and it made for a nice change of pace, not having all the boss's aggro to deal with. It also worked out quite funny when Sulyvahn summoned his own back-up, making it 2v2 as The Black Hand had already died. Anri and me finished the job.
Then I pushed on and discovered Anor Londo, and found The Silver Knights Archers have returned! Loved the whole area and I think Aldritch is a great boss. He's squishy and leaves very obvious openings to attack, but has some very dangerous moves of his own. Makes for a good balanced challenge, I think.
You couldn't make up how my fights against him went. I helped Anri first and it took us 3 tries because she kept dying to his crazy arrow storm attack. I was like, "Good god woman get back!!!". Then we killed him and all 3 of us died at the same time, in the arrows. I was in too close, swinging away and never noticed he had pulled back his bow. Got my Ember though and Anri's sign vanished, so I knew we'd got him. (Got her sword now as well).
Then I took him on myself and killed him on the 2nd attempt...and we both died at the same time, in his arrows....Honestly...No word of a lie. He had a sliver of health left and I charged in for a running jumping R2 attack. I was committed, when once again he pulled back his bow...I held my breath as we died together, again, and then I got the on-screen confirmation along with his Soul and Cinder thing, before being put back at the last Bonfire.