The concept of "better" does not work into it. Each rotor is designed for a particular purpose, for that particular helicopter. Sometimes the best solution is a two bladed prop. sometimes three, sometimes four, all depending on a wide variety of parameters. It's is analogous to knives. A table knife is designed for certain purposes. A hunting knife is designed for certain purposes.
Both work perfectly for the purposes they were designed for, but they are hardly interchangeable, and one is not "better" than the other.
Yes
That's like asking if a shovel is better than a bandsaw, it all depends on what the pilot is asked to do. A helicopter can land just about anywhere, but it can't hunt down another aeroplane.
The number of blades on a helicopter can vary depending on its design and purpose. Most commonly, helicopters have two to five main rotor blades, with two-bladed configurations being typical for smaller helicopters and four or five blades often found on larger or more advanced models for improved performance and stability. Additionally, some specialized helicopters may have more than five blades. The tail rotor typically has two or three blades.
No, in poker, four of a kind is better than a full house.
if it's hundred-dollar bills, ten of them is better than four. If it's parking tickets, four is better than ten.
A fast aeroplane will be faster than any helicopter, but a fast helicopter can be faster than a slow aeroplane.
They aren't really designed for it, but they can to some extent. Better than, say, a brick, or even a helicopter.
No. A helicopter is not faster than an airplane. A helicopter could fly at about 400-650 kph. But a plane could fly much faster than that.
the four fifths is better
In poker, four of a kind is better than a full house.
Four of a kind
With the exception of certain jump jets, helicopters can land easier than planes and better maneuverability. Planes are much faster and can carry stronger air to air weapons or bombs, but helicopters have better air to ground precision weapons. Helicopters are better for ground force support. helicopter requires less space instead of planes.