The last few years i have been into Judo (although over the years I trained in various marital arts, although don't get me wrong. I don't see myself as an expert).
Judo being my focus at the moment.
I have to say that my favourite technique at the moment is ippon seoi nage (1 shoulder throw) and the 2 knee drop (or drop to your knees variation other wise known as Ryo-hiza-seoi-otoshi).
Although, like all my techniques, need a lot of work to get them to work most the time.
I also really like o-soto-gari/o-soto-otoshi and harai goshi, which my body appears to move towards naturally.
I also prefer to lean towards Renraku-waza (combination techniques) for tachi waza (standing techniques) and combinations and sensing your opponents weight distribution / energy movement over using purely physical strength.
You can use combination techniques to throw your opponent without having to use loads of physical strength. Which to me is good Japanese style Judo. Minimum effort Maximum Efficiency!
As for striking, when i was a kid, i used to have a really fast and high roundhouse kick which i was proud of.
I used to be able to kick a foot or two above my head height, and as high as my own height while keeping my back straight and in balance.
But life and illness has taken its toll on me, my kicks are slow and low. Think i can kick about as high as someone's belly now. But as it happens, now doing judo, kicks are not much use as make you vulnerable to being thrown and swept then strangled and locked. 