STR/FAI is falling apart completely in the lategame. Mobs do too much damage to be able to trade with them and have too much poise to stagger with anything but colossal weapons. The entire middle section of like halbers/hammers/greatswords feels just awful against most of this - too slow to get in any damage between mob attack chains, not enough stagger to break their chains and get in damage that way.
That's suddenly my experience as well. Don't use faith (even though that was my plan).
I reached the ice zone now, level 120ish. I have a combination of Radahn armor and the armor which has the chestplate with the fat stomach. Poise is 70ish and have 1500 hp. Using a starscourge greatsword and a greatshield upgraded to 20 with 70ish guard. Got to the first ruin and the enemies there hit with a regular hit for 30+% of my HP. I do 10% of their HP with a hit. They dodge like mad and don't stagger. They killed my level 10 mimic before I cleared the camp, so ran when 3 came at once.
Ran into some stormbirds, they too hit for 30% of my HP. They died in two hits, but I chug pots like mad. Ran into bats, they kill my horse in a hit combo. Came to an erdtree and it duped itself, where one of them oneshot my horse and did 90% of my HP with one hit.
Granted I am using the item that raises my stats and increases my damage taken, but need that + the equip load talisman to be able to equip all the armour and still be at medium load.
I also miss my Golden Halberd. Starscourge is better fighting on the ground and MUCH better on the mimic since it uses the special skill all the time, but it is awful for horse combat.
I've felt somewhat overleveled for every zone I've been in, except perhaps Caelid. Using summons, it's never been a "hard" game. Most I've died to a boss is 4 or 5 times which was the glint dragon as its breath oneshot me. Probably because I explore so much and there has always been other places to go if I entered a place where mobs were clearly higher level than me. Now this is the only area I can think of to go to, and trash mobs make me feel about as powerful as I did exploring my first ruin. Only difference was that the first ruin had one soldier that was more powerful than the rest, now entire camps are filled with enemies like that.
Makes me want to restart and go mage. I know I can respec, but recently also did a lot of talking in the roundtable hold and I suddenly understand all the "Why is it always regret" messages. I think I did a lot of quests wrong or in bad orders. Things escalated so quickly!
Will of course push through, but man did the game suddenly turn Dark Souls mode on in the last 5 hours.
EDIT: One thing though. I am 84 or so hours into this game now. Take Skyrim or the Fallouts and this was the point when the vanilla versions had fatigue set in, in terms of everything being too easy even at the hardest difficulty. Loot didn't matter anymore so exploring suddenly started feeling pointless.
My "complaint" now is that the game just got harder after 80 hours and 120 levels and became more Dark Souls than its been in a while. And I love Dark Souls. So guess I am just complaining that the feeling of being OP has suddely gone away and the game reminded me that I also need to git good.