Hardest Boss: Not sure on the hardest boss. Honestly I'd say Gherman can be kind've a pain in the ass because his attacks stay locked on you in a semi-unfair way. He essentially can suck you into his combo even with very well timed rolls. And he's almost impossible to stagger after he transforms. Still beatable though.
Most Annoying Enemy: This has to go to the guys that suck insight from you then spam that ring that traps you so they can do it again. I prolly yelled at my screen for these mothafukkas more than any other enemy
What Armor and Weapon?: I rocked with The Crow Armor prolly the most. I ended up switching a lot depending on resistances for certain bosses though, and mixed and matched a few times. Henryks Armor was cool, Executioner set was cool, Cainhurst Armor was cool.
I rocked with Ludwigs holy blade mainly cause I got used to it and put all my fortifications into it. By the time I got to a blood rock it was +9 so I had to make that bytch +10. With the blood gems I have this thing is a beast. Plus I would use the empty phantasm shell to add electricity too it. I mostly rocked with the repeating pistol and ludwigs rifle or whatever on the gun side.
Most maxed stat playstlye: I decided when choosing my character at the beginning to do a strength/vitality build. So my vitality bar was pretty high and pretty high strength. This left me needing endurance a few times throughout my play-through though and had me wishing I had dedicated more to endurance. My playstyle was heavy damage and tanking to a degree because of this. I had to really manage my endurance. Apparently there is a covent gem that increases your endurance refill time too that I missed, that would've been nice. On my new game + Im going to pump points into endurance and arcane so I can roll more and use all of the magic tool items, because I can only use a few right now.