Van Halen's 1984 was my first musical purchase ever! I bet I still have that cassette somewhere. Zep was never a favorite of mine, but I enjoyed a few songs like Black Dog, Misty Mountain Hop...
I've always loved Sabbath, well the first 6 albums anyway, which is really all that matters.
Hell, I even like some Queen, which is what The Darkness reminded me of except they somehow managed to grab every possible annoying weakness from Queen and increase those annoyances exponentially to create one horrible song.
And tons of metalheads own Extol, Zao, Lengsel, and no one has a problem with it. And that hopesfall album you own, Christian hardcore, my man.