I have a fairly wide range, primarily Hardcore/Metalcore because they are just that awesome, live shows go off, simply crazy, just need to learn how to scream now...
Bands eg. Parkway Drive, August Burns Red, I Killed The Prom Queen,A Day To Remember,Suicide Silence, Confession, Hand Of Mercy, Northlane, Deez Nuts,Emmure and tonnes of local bands I doubt anyone has heard of
Punk rock and pop punk come in a close second, just so catchy and I grew up on it so yeah, love it

Blink 182, Good Charlotte, Sum 41, Paramore, Tonight Alive, You Me At Six, Heroes For Hire, Zebrahead, Rise Against (doesn't fit the category, more punk, but awesome band

)
Rock/metal only a bit, more of my rare occasion genre, but Foo Fighters, System Of A Down, Slipknot, ACDC are sweet
Rap I like Eminem and bit of Bliss N Eso, haven't heard that much of the genre so not much to check out, same goes for electronic, into pretty much any heaps heavy hardstyle song or dubstep, listen to a bit of Skrillex and some Wildstylez
Alternative I love the Wombats, that's pretty much it, its a new genre for me
Dance, pop etc pretty much party music I listen to every now and then if I got nothing else to listen to at the time, and good to dance to at parties so yeah
More people need to listen to new genres, don't know what you're missing