Sci fi and fantasy, yes, especially when blended, such as in shadowrun.
Specifically, I just really love good writing though, and am far more picky about the writing style, than of the genre.
For example, I just watched silence of the lambs again yesterday. WONDERFUL movie... but it's not sci-fi. It's not fantasy. It's not even a genre I normally care for, but it's exceptionally well written.
Star trek is alright I guess... at least the original series and TNG were, and the movies until the recent one which I haven't watched out of spite. The others, DS9, voyager, enterprise? Not really interested, the writing sucked and being 'zomg in space!' means nothing. Space exploration is a TOOL to deliver a story. Enterprise used it as a crutch. Voyager used it as a drama -_-;
If yeu want good sci-fi, watch babylon 5. There yeu go, awesomeness in a can. PURE 100% awesome.
Terminator was good, at least the second movie and the first were. Third was alright, haven't seen fourth but not sure I care despite that they finally got to the part I WANTED to see >.<
Dr who is <3, at least most of the time. Everyone knows the best doctor was the fourth doctor, and had the stupidly long scarf and the sonic screwdriver though. And K-9.
*Swoon over scarf* I needs me one of those XD
Anyways, yeah, sci-fi is good... sometimes. GOOD sci-fi is GOOD. Not because it's sci-fi, but BECAUSE it is good. GOOD fantasy is also GOOD, once again not because it's fantasy but because it's well written.
Sci-fi and fantasy just happen to be useful mediums which provide far more creative reach. If yeu're writing non-fiction, yeu're pretty much handicapped on whot yeu can write. Yeu can't place in a moral which doesn't exist without screwing up the storyline, and yeu can't make anything new or interesting which didn't exist. Reality CAN be stranger than fiction (after all, fiction has to stick to possibilities), but fiction can do things which reality hasn't done.
Sci-fi and fantasy just give a vast expance of tools to apply to situations beyond that which currently exist. A truly great writer can make awe-inspiring use of these tools. A bad one still sucks. I like good writing, it just so happens that sci-fi and fantasy give a broader range of tools to the good writers, so that yeu can see just HOW good they really are.