Mig welding which some say in there opinion its the easiest process

Mig welding uses inert gas and is useful because you can use it to weld many different types of metals such as Carbon steel, stainless steel, aluminum, magnesium, copper, nickel, silicon bronze and other alloys. Shielding gases are necessary for gas metal arc welding to protect the welding area from atmospheric gases such as nitrogen and oxygen, which can cause weld defects like for example Porosity.
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Mig (GMAW)

• Very Clean welds with no slag or spatter
• Uses argon/CO2 or straight CO2 as a shielding gas
• Wire is less expensive
• More complex than flux core
• Less portable