Kurosawa has a wide range of styles - which is why I like to compare him to Kubrick, although Kurosawa usually stays within Edo period contexts while Kubrick also had a wide range of themes. My favorites so far are Seven Samurais, Yojimbo and Dreams. Don't be afraid of watching one of his films from the 50ies - because of their relatively quick pace, clear themes and modern looking cuts I find them highly enjoyable, not just as an educational experience, but with a genuinely high entertainment value even today. From an educational standpoint it's amazing to see the strong influences he had on Star Wars for example.

I was once watching tv, it was 01:00 in the morning and I was about to go to sleep. Then I changed the channel and there was this old movie of samurais in japanese, in black and white, just for curiosity I gave it 2 min. Then I couldn't stop watchin till the end, it was that good. I learned at the end that it was Kurosawa' seven samurais. An amazing film, really.

Since you're looking for recommendations, try Blow Out directed by Brian De Palma in 1981. I saw this film recently and thought it had a very interesting style, especially the shots using a split focus diopter.