Different people at different times, something like this:
1. George Harrison - Inspired me to pick up the guitar
2. Jimmy Page - Inspired me to play it LOUD!
3. Ritchie Blackmore - Inspired me to learn more than the blues scale.
4. EVH - Inspired me to play without fear. "Fall down the stairs and land on your feet".... I try.

5. Yngwie Malmsteen - Inspired me to sort out my vibrato and play every note as best as I could with maximum attention and intensity.
6. Public Enemy - Inspired me to forget about guitar for a while (a whole year pretty much) and learn how to LISTEN to what else was going on in a song. I still maintain they are one of the most "musical" groups of all.
7. Hal Galper - Inspired me to trust my instincts and understand that technique comes from the brain.
8. Guthrie Govan - Inspired me to want to be better.
There's others, Schenker, Uli Roth for example, but the above were pretty big landmarks for me.