Probably the A340 or the 747 lol.
I would say the Boeing 777
the dc-3, the 777, the 737-8 and the 787
Mayby concorde
I would also say the A350 and A220. or even the 727 or TriStar.
Tristar is a good one
Maby even the lockheed coni cuz of the TICC landing gear
Also the il-86
The landing isn’t that good, but for this plane I think it was good
The sepcat jaguar as an figther
Or the saab viggen
Bro became a mod out of nowhere lol
also the 757
Honestly, I think it’s mostly the pilots and not the aircraft. The aircraft can partially contribute to butter landings, tho 
The aircraft makes it look more buttery lol!
What
787, 777 and A340. Those tilted gears are just beautiful in general, especially when landing smoothly.
True, true