UFO gets my vote! I just think back to the days in the 70's playing ice hockey & discovering bands which kind of went together because it was my fellow teammates that would say something like "You like Kiss? Try Judas Priest, try the Scorpions, Try UFO..." From the day I picked up Strangers in the Night I loved it & actually got to see them on that tour (it was originally supposed be UFO w/AC/DC opening but UFO was held up at the border so we got a full AC/DC w/Bon Scott set & UFO returned w/ Talas a month later which we used the same ticket for). Live, UFO was as great as the live album(Pete Way was such a showman on Bass!) Anyway,great band & one of my favorite live albums of all time.
I liked Thin Lizzy's live album although for me there's no comparison to the UFO album. I like Thin Lizzy but that's about it. There are tons of fans around but I just can't go much beyond saying they're good. My favorite album by them is Chinatown. A strange story about the live album was I bought the album from A store called Cavages & I brought it home, played side one & two, grabbed the next record out of the sleeve...&...it was side one & side two! 2 weeks later I brought Bob Seger's Nine Tonight live album & the same thing happened! The guy at the record store laughed when I came back for a second time