My vote would have to be for The White Stripes. Their influence inspires a back-to-basics approach with music. Simplicity and rawness have been brought back into the mainstream full-force, thanks to this band. They've opened the door and opened minds for bands just like them to get out there. There's so much music out there which is so impeccibly mixed, edited, etc. While that works for certain genres & artists, I know that if I go see the Stripes at a show, they'll have fun with the songs. The same song is never performed exactly the same way twice, yet they sound just as they do on their albums because the albums haven't been mixed and enhanced to the point of becoming unrecognizably generic. I also love the passion that emulates from them when they perform. To see someone doing what they love and actually believe in every bit of it is inspiring in itself.
So, yeah. That's my opinion.
Red 4GB