Just played through Dungeon, Pumpkin Moon, Golem, Old One's Army, Frost Moon, and Duke Fishron with melee.
Thoughts:
-Horseman's blade is legitimately great now, competes with Terra blade against invasions (especially solar eclipse) and pretty good vs Golem, but risky. Even used it against Betsy once. Not super good in most aerial fights.
-The Sky Dragon's Fury is kind of wimpy now in its left click attack, considering its range is exceeded by a lot of other swords now that spin in a circle (specifically Terra Blade and Horseman's Blade). Its right-click attack is better than both those swords, though, so it may not need a change. But would it hurt to extend its circle of energy a bit?
-North Pole doesn't feel much better than before, and possibly worse. Granted, I was fighting in Underworld on the upside down seed, but shooting horizontally against Old One's Army felt like it was missing a lot of the ground troops. When I did get it to vertically fall on bosses, it was really good, but overall this feels like a downgrade for general use.
-Christmas Tree sword is great now, stronger than everything listed above, but requiring closer range.
-Flying Dragon is good; its area of effect is pretty small compared to the Terra Blade, but damage is nice (still less than Christmas tree sword in fights I tried).
-Seedler, Possessed Hatchet, Paladin's Hammer, and Golem Fist all seem pretty much like before, which is just fine, since they all had a niche of sorts. Seedler and Possessed Hatchet's homing capabilities are a bit less useful now that Terra Blade has such a wide area and can hit more reliably.
Non-melee weapons:
-Tempest staff is much better now, I think just the fact it fires as it returns makes it much more consistent. I switched to it from Ravens and never went back.
Other:
-Golem redesign is very good.
-Old One's Army price changes continue to be the best part of the update
-Headless Horseman redesign really took me by surprise, and made them a lot more interesting.