Here is a list of the most sophisticated fighter air crafts in the world

Lockheed Martin F-22 Raptor

Country of Origin: United States of America
User: USA

Lockheed Martin F-35 Lightning II

Country of origin: United States of America
Users: USA, UK, Australia, Israel, Denmark, Japan, Netherlands, Italy, South Korea, Turkey.

Sukhoi Su-57

Country of origin: Russia
Currently undergoing testing and trials.

Chengdu J-20

Country of origin: People’s Republic of China
User: China

Boeing F-18 Super Hornet

Country of origin: United States of America.
Users: USA, Australia.

Eurofighter Typhoon

Origin: European Union countries

Users: UK, Germany, Italy, Austria, Spain, Saudi Arabia, Kuwait, Oman.

Dassault Rafale

Country of origin: France.
Users: France, India, Egypt, Qatar.

Sukhoi Su-35

Country of origin: Russia.
Users: Russia, China, Indonesia

McDonnell Douglas F-15 Eagle

Country of origin: United States of America.
Users: USA, Israel, Saudi Arabia, Japan.

General Dynamics/ Lockheed Martin F-16 Fighting Falcon

Country of origin: United States of America.
Users: More than 25 countries, including Pakistan.