AC-DC is kind of like Liverwurst ... either you love them or you hate them. Most of their songs employ a shrieking/screaming lead singer voice, a traditional four-on-the-floor beat, with a heavy dosage of guitar riffs. People who criticize AC-DC say all of their songs sound the same ... and to an extent, that's probably true.
But, this group rocks ... great guitar riffs, songs filled with references to drinking, and sex ... choruses you want to scream at the top of your lungs ... just true party music.
I love a lot of AC-DC songs, but my favorite one has to be TNT - how can you go wrong with a song that starts off with a chorus of "Oi ... oi ... oi ...." which is supported by a very cool guitar riff? The answer is that you can't. This song would probably be the song I'd use as an entrance theme if I was a professional wrestler (yes, I've put some thought into that in the past).
It also includes a very memorable line - "Lock up your daughter, lock up your wife, lock up the back door, run for your life ..." Probably a little on the "tasteless" side, but a true rock line if there ever was one.
In case you're interested, here's a "live" video of the song: