That question is pretty unfair since it's impossible to judge the influence of a decade that just ended, so I'll focus on creativity.
The aughts have been filled with more experimentation, variety and consumer choice within every genre of music, "rock" included, than any other period of history. Regardless of when your favorite music was made or how much you hate modern music, there's no contest when it comes to which decade had the most creativity. It's just a shame so much of that creativity was horrible, though there's been more than enough awesome to make it all worthwhile. My vote goes to the 00s. The 70s come in at a distant second.