This should be interesting with the youth on this board ...... 
My first was Jethro Tull with Richie Blackmore opening in 75'
The best I've seen is tough. Joe Satriani is my favorite so I'm biased, he's always great. Recently saw Joe Bonamassa and what a super blues man. A few more best remembered was Kid Rock, the guys energy and ability (he ended up playing every instrument on the stage) is second to none I've seen. And then there was the ZZ Top Eliminator tour with the ZZ Top girls, oh my! Saw Kiss in 76', great theatrics but the plus was Bob Seager opened for them!!!
I honestly can't say how many times I've seen Satch (but he wins the number for sure), ZZ Top, and Blue Oyster Cult ........... all more than 5 times.
Honorable mention: Page & Plant reunion tour, Oz fest (Ozzy, Judas Priest, Slip Knot), Brooks and Dunn

My first was Jethro Tull with Richie Blackmore opening in 75'
The best I've seen is tough. Joe Satriani is my favorite so I'm biased, he's always great. Recently saw Joe Bonamassa and what a super blues man. A few more best remembered was Kid Rock, the guys energy and ability (he ended up playing every instrument on the stage) is second to none I've seen. And then there was the ZZ Top Eliminator tour with the ZZ Top girls, oh my! Saw Kiss in 76', great theatrics but the plus was Bob Seager opened for them!!!
I honestly can't say how many times I've seen Satch (but he wins the number for sure), ZZ Top, and Blue Oyster Cult ........... all more than 5 times.
Honorable mention: Page & Plant reunion tour, Oz fest (Ozzy, Judas Priest, Slip Knot), Brooks and Dunn