So many good ones, but ones that stick out besides the main stays:
WASP - great band with 5 killer albums under their belt. Their debut was amazing.
KIX - shorter output but Blow My Fuse is awesome.
Honeymoon Suite - more on the lighter side of the spectrum, but some great songwriting and they had a good guitarist.
Extreme - probably had put out the best album of the 80's. Of all the hair bands I've seen lately, caught them at the House of Blues a few years ago and the place was sold out, and the band looked like they only aged a few years. Hell of a show and Nuno is a shredder.
The Cult - another perfect album (Sonic Temple) released and they continue to bring it.