Well My first concet was Bob Segar when I was 13 in a small place here in Michigan . . probably 50 people attended. I didn't even know who he was. As for my favorite . . . way to many to choose from but I will list some that I remember as good.
Black and Blue Sunday with Black Sabbath and Blue Oyster Cult
Ozzy with Randie Rhodes on Both tours Def Lepard warmed up and I didn't even know who they were.
Van Halen I saw 4 times in one week, AWESOME! David lee Roth was with them still Have seen Van Halen 6 times with both singers
AC/DC back in black tour was great! Have seen AC/DC 8 times
Rush is always one of my favorites and have seen them 9 times
I saw Queen in 1982 with Freddie . . . good light show!
Led Zeppelin in 1977 Pontiac Silverdome, Pontiac, Michigan This was my 3rd concert! Very cool!
Some others I've seen include:
Aerosmith, Alman Brother, Amboy Dukes, Alice cooper, BTO, Boston, Billy Joel, Bon Jovi, Bad Company, Cars, Cinderella, Doobie Borthers, Deep Purple, DIO, Dokken, Elton John, Eagles, Foghat, Foriegner, Great White, Guns and Roses, Heart, J. Geils Band, Jethro Tull, Journey, Judas Priest, Joe Satraini, Kansas, kinks, Kiss, Lynyrd Skynyrd, Molly Hatchet, Metallica, Motley Crue, Montross, Nickleback, Pat Benatar, Phish, Pink Floyd, Poison, Rainbow, REO Speedwagon, Rockets, Rolling Stones, Sammy Hagar, Steve Miller, Santana, Styx, Telsa, Ted Nugent, Warrent, White Lion, Whitesnake, The Who, ZZ Top, Zappa.
I know I missed a few but that was from memory.