Yes, I believe that they are.
The U.S. Army have the U.S. Army Rangers and U.S. Army Special Forces more commonly know as the Green Berets and the U.S. Marine Corps have Recon Marines (split into Divison Recon and Force Recon), who are special forces-capable, and MARSOC, which is their contribution to SOCOM (Special Operations Command)and are up their with Navy SEALs, U.S. Army Special Forces, and Air Force Pararescue.
The SEALS are a US Navy unit. The Marines have their own special forces, Recon. They may cross train, but they have different missions and skill sets.
No. Not even close. The toughest and best Special Forces are British SAS, American Delta Force,Green Beret and Marines' Force Recon
MARSOC MARine Special Operations Capable
I think it is the Marine Force Recon.
Yes. The Marines created MarSOC in 2006. The 1st and 2nd Marine Special Operations Battalions (MSOB) were created from the Force Recon companies. The 3rd MSOB was created in 2009. They conduct foreign internal defense (training foreign military units), recon, and direct action operations, similar to the Army Special Forces.
Recon
You're comparing apples and oranges. Special Forces is one distinct function of the Army (though the Marine Corps now does have units under the jurisdiction of SOCOM), whereas the Marine Corps is an entire branch of the service.
Marine Force Recon is a branch of MARSOC (Marine Special Operations Command) and their job is to locate HVT's (High Value Targets) and other threats for the main infantry. There is no question about it, they are the most elite fighters in the United States. Many say that Navy SEALs are more elite, but there are over 3,000 SEALs in the world, and only about 300 Force Recon Marines in the world.
There are approximately 5 Recon Marines active. Err
Considering that the marines are always the first to respond, they may be considered better in recon then the navy in general. However, the navy SEAL's may be considered better than the marines in genreal since the SEAL's are special ops.
No. Delta Force is part of the Army. The Marines have their own special operations forces.