Isn't this what DmC does? I've only played the demo but I thought the way they handled switching was more intuitive than DMC4.
DmC uses modifier buttons for weapon switching, which is a mechanic Ninja Theory brought over from Heavenly Sword. Rebellion is your default weapon, and then you hold R2 to use your Demon weapons and L2 to use your Angel weapons. You have two of each of those, and they're swapped between using the D-pad. It's an interesting way of letting you carry a full loadout of five melee weapons at once, but you also lose access to a lot of the DMC4 moveset (no Royal Guard or Trickster equivalent, for instance). DmC has the right idea with a one-button dodge that works in mid-air as well as on the ground, though.
I think both point of views are valid regarding styles tbh,like it feels like a outdated mechanic on paper but i don't find it clumsy,obstructive,unnecesary complex at the same time.
You have to switch stances in Nioh and i don't think anyone found it obstructive or anything like that.
Never played bayonetta so i'm a ignorant about that one,but i saw a few posts mentioning it as a possible solution.
How does the combat work on Bayo? do you have to do long combos to perform a specific attack like in a fighting game or something? i'm talking completely out of my ass here,i have no idea at all.
The difference is that Nioh gives you a fully-featured moveset in every stance, whereas DMC4 locks what should ideally be basic functionality to specific styles. You have an easy one-button dodge in all three stances, it just changes its properties depending on your stance (rolls in high, quick dashes in low, etc). Plus switching stances has the added benefit of more effective Ki-recovery when you Ki-pulse, if I'm not mistaken.
Bayonetta has two attack buttons and lets you use two melee weapons at once. You equip one weapon to your hands and use it with Triangle, and one to your feet used with Circle, and you can hit a button to swap to a second weapon loadout. It has many of the same command moves as DMC (it's more or less built on top of the original DMC1 moveset, so you always have a launcher, a Stinger and pause combos), but you also have a dial-a-combo system where three, four or five hit combos will end with powerful finishing moves called Wicked Weaves. Then there's also what I think is one of the cleverest systems in action games called Dodge Offset, which lets you dodge at any time without losing your place in a multi-hit combo.