SL1 Run ramblings:
Down: Throne Watcher/Defender, Ancient Dragon, Vendrick, Giant Lord
I could complete the game at this point. I mulled over not killing Vendrick as I believe killing him is a condition of Aldia showing up(?) but I figured it didn't matter whether I killed Aldia or not - I've only fought him once and I thought it was kind of a cheap boss fight so I don't expect to be able to do it @ SL1, so the only difference between killing him and not is the end sequence.
Vendrick and Ancient Dragon - no problem whatever level, they can be cheesed and with even half-decent RNG you're guaranteed a win.
Throne Watcher/Defender was a pain - I got really lucky when one of them went to heal the other and I killed them just as the healed one got up. Previous to this my last try I suicided because they healed each other to full health from being downed. I was like 'fuck this!' after the second heal and just jumped off the side! I was so happy to get that kill.
This SL1 run has been fun, again I will say it's the most challenging of the three Souls games - certainly the agility stat makes a difference. Can you imagine in DS1 rolling through the 4 Kings attacks with DS2 agility in play? For this reason I am not doing the DLC. As good as the DLC is the bosses have a lot of bullshit in play for a low agility SL1 character, so I did grab the Flynn's Ring but I will not even bother trying fights like the invisible tiger, Elana, Fume etc - it seems pointless to me unless you're a Souls master - which I am not. I'm just happy to cheese Nashandra and call it a day.
This SL1 run has been the most fun of all 3 games