International Karate Orgainization- kyokushinkai-kan
People regard kyokushin and Shotokan as strongest. But there's no better style. The teacher and the practitioner itself makes the style stronger.
taekwondo is strongest
Each style of karate has a 'Grandmaster' that is the highest ranked in that style. Typically each style has a single 10th Dan.
shotokan style
The Wado ryu Karate style mixes the two about 70:30 to karate but I'm not sure that is what your looking for. Are you looking for a specific style or anything that combines the two?
Its an Okinawan style of Karate.
Karate
You can pretty much find any style of karate in Germany that you are interested in, including:Shorin ryuTang Soo DoTaekwondo!
The number of forms or kata in a style varies from style to style. Your instructors can answer the question for your style.
Daniel Larusso got taught Shotokan Karate in the Karate Kid
As strong as its students. Kyokushin is known as the strongest karate and is recognised for its full contact fighting system. Because the grading system is extremely demanding, students train hard and fight hard. The sporting side of this style is very competitive.
There is no "best" Karate type it varys on what type you want to do. The best karate style is the one that you will study and practice.