Really short, really fast, this is how I would deal with the most common styles, let me see if you guys agree or differ. Boxing Bob and weave into clinch range, turn it into a clinch, then let elbows punish his lack of knowledge on where to place his arms. Taekwondo Run in behind his chamber, so that I am to close to get kicked, then take him down and turn it into a bjj match. Kickboxing A mix of the tactics against boxing and taekwondo Muay Thai Defend the clinch until I can find an opening to throw him, especially off the underhook when he goes for inside grip on my head, perhaps a hip toss from there, then submit him from the ground where he has less knowledge. Wrestling Control his takedowns using sprawls and such, establish some sort of guard, transition into guard designed for keeping his posture broken. Use his lack of understanding submissions to find openings for submissions, setting him up with elbows from guards where you have a hand free. BJJ Use a mixture of clinch and wrestling to defend my posture, so I can make it about the clinch and ground and pound, instead of playing into his entaglement based system. Judo Stop the throw early and keep him in the thai clinch, raining in knees and elbows, using his lack of understanding where to place his arms for a good defence in a muay thai clinch. What are your thoughts? What style do you think is hardest to fight?