Help your potential matches find common interests.
I like books that make me think or make me laugh - even better if
they can do both. Jasper Fforde, Philip K Dick and Terry Pratchett
are probably my favourite authors. I also find Gideon Defoe's "The
Pirates! In an Adventure With..." series hilarious to a frankly
embarassing degree (as in, laugh-out-loud-on-the-Tube degree, and
I'm not sure it gets more embarassing than that). I recently read
The Martian (Apollo 13 meets Cast Away, on Mars) which was
excellent, and definitely recommended if you're into those sort of
stories with a dose of hard Science Fiction.
Film-wise I have a fairly wide taste. My favourites though: not a
strict list, but The Lion In Winter, LA Confidential, Once Upon a
Time in The West, Stardust and North By Northwest are all up there.
In slightly more recent films, Cloud Atlas blew me away in a way
nothing else has done since.
I don't watch huge amounts of TV, but I'm a bit obsessed with
Doctor Who. Don't worry, I can stop whenever I want.
I mostly listen to orchestral stuff - film scores especially. John
Barry is my favourite composer, but since almost no-one I've ever
met knows who he is, that's not much use as an answer to this
question. But I also like assorted other things, like swing music,
classical pieces (especially Russian Romantic composers), Muse and
random 70s/80s concept pieces like Tubular Bells, The War of the
Worlds and The Hunting of the Snark.
My favourite cuisine has to be Italian, with French very close. I
have some slightly odd restrictions in my tastes, but I'll find
something I'm interested in trying on most menus.