The Samurai Champloo soundtrack is beautiful. Didn't realise chill instrumental hip hop even existed before I heard it haha. If there's anything else like it I'd love to hear it.
I love instrumental type Hip hop, it's amazing. Artists like Uyama Hiroto, Kondor, and of course Nujabes. RIP. As far as hip hop with vocals, I love underground, chill and intelligent rap like Pase Rock and Shing02. A perfect example is Art of Verse, love this dude, he's so unknown too.