I totally agree that assassination is also far more interesting than people seem to give it credit for. There are alot of different abilities to keep track of in order to max your dps. Definitely not what the OP wants though
But then again I get ranked almost every fight, sometimes top20 on WoL.
You can also do "decent dps" when you smash your face on your keyboard, but I don't know... playing it right is another story.
If your goal is to do "pretty nice" DPS, then why log on at all? People log on to these forums do discuss and seek answers as to how to perform better or how to better the class in general. Not really the place for someone who is out to be as mediocre as possible.