I'm not gonna discuss best/worst... depends on the person and how you vibe with the instructor. For what it's worth I trained here:
KRU BRYAN DOBLER
Kru Bryan is also known by his fight name "Double Dose" which our gym is named after. He is one of only a handful of Senior Instructors in the USA under Grandmaster Chai Sirisute (President and Founder of the Thai Boxing Assoc. USA) and has known Grandmaster "Chai" since he was just 6 years old. He began teaching more than 20 years ago starting with one student in his garage and eventually growing his stable of fighters and gym size to the 8,000 sf facility we have today. He was a professional Muay Thai Champion (trained by Ajarn Rex). He has fought in the USA and Thailand. Kru Bryan headed Team USA at the 2006 Kings Cup Muay Thai Tournament in Thailand, leading two of his students to silver medal honors, and bringing home a bronze medal of his own.
He is one of the few certified Krabi Krabong (Thai Sword fighting) Instructors in the USA, Certified by both Ajarn Stephen Wilson as well as Colonel Nattapong Buayam.
AJARN REX Senior Instructor
Ajarn Rex is a Senior Instructor for the Thai Boxing Association of the USA. His extensive fighting career in Thailand, Mexico and the USA totaling more than 150 fights, coupled with training fighters for 40 years makes him one of the most highly qualified and sought after trainers in the USA. He is loved for his kind heart and sense of humor and feared for his aggressive style of pad holding that can push the best conditioned professional fighter to their limits. He is a world class referee and judge for Muay Thai and MMA and has refereed World Championship Muay Thai fights all over the world. We are proud that he is part of our illustrious team of trainers here at Double Dose Muay Thai.
AJARN KIM KONGKRIANGKAI Senior Instructor
With 115 wins by KO he was one of the most fearsome fighters of his day (a true Muay Thai legend). He personally trained 5 champions in Thailand and numerous others in the USA and Mexico, including the infamous Julio Cesar Chavez for 4 years. He is a loved for his no-nonsense approach and his ring craft skill training. Never beating around the bush always pushing you beyond what you thought were capable of and always recognizing and capitalizing on your individual strengths. His half century of ring experience is a tremendous asset to the school.
KRU SHAWN FARNSWORTH Associate Instructor
Kru Shawn is certified Associate instructor for the Thai Boxing Association of the USA under Ajarn Chai, and brings a wealth of knowledge and experience in physical education as a teacher for the Fontana school district. She is a USA Muay Thai Champion, and brought home the esteemed Silver Medal from the Queen's Cup Muay Thai Tournament in Bangkok Thailand. She is a champion in and out of the ring!