Attendance:

• Rio 1-12-85 - 350,000
• Rio 1-19-85 - 250,000
• London 9-18-76 - 150,000 (some reports claim 200,000)
• São Paulo 3-20-81 - 131,000
• Stevenage 8-9-86 - 120,000 (some reports claim 200,000)
• São Paulo 3-21-81 - 120,000
• Slane 7-5-86 - 95,000 (some reports claim 110,000)
• Mannheim 6-21-86 - 85,000
• Budapest 7-27-86 - 80,000
• London '86 (two nights) - 72,000 each

(Honourable mention 1 - Live Aid '85, although it was a charity show with dozens of bands on the bill)
(Honourable mention 2 - Kharkov '08, where Queen + Paul Rodgers played to about 350,000 people)

Top 10 most bootlegged Queen concerts (not including officially-released shows):

• London 9-13-73
• Tokyo 3-31-76
• Tokyo 4-1-76
• Seattle 3-13-77
• London 6-6-77
• Cologne 2-1-79
• Buenos Aires 2-28-81
• Fukuoka 10-19-82
• Fukuoka 10-20-82
• Mannheim 6-21-86

Top 10 unofficial Queen concert recordings from the 70s, quality-wise:

• Yokohama 4-30-75 - "In Hama" (Tarantura)
• Boston 1-30-76 - 24bit/96kHz transfer from master cassette
• Osaka 3-29-76 - "Zoom" LP
• Boston 2-9-77 - master cassettes > reel
• London 6-6-77 - best video source
• Houston 12-11-77 - best video source
• Montreal 12-1-78 - low gen cassette
• Chicago 12-7-78 - master cassette
• Tokyo 4-14-79 - "Bootleg Race" (Tarantura)
• London 12-26-79 - "Complete Kampuchea Concert" (Gypsy Eye)

Top 10 unofficial Queen concert recordings from the 80s, quality-wise:

• Oakland 7-14-80 - third generation cassette
• Rosemont 9-19-80 - master cassette
• Tokyo 2-16-81 - "The Miracle Game" (Tarantura)
• Buenos Aires 2-28-81 - soundboard > reel > cassette (2)
• Sao Paulo 3-20-81 - "Morumbi Stadium 1981" (Pablo)
• Nishinomiya 10-24-82 - "Get Down" LP (original 1983 version), speed corrected
• Birmingham 9-2-84 - master cassette
• Sun City 10-19-84 - soundboard recording
• Osaka 5-15-85 - "The Last Concert In Japan" (Masterport)
• Mannheim 6-21-86 - "Queen Reigns The World" LP

Top 10 Queen performances, musically-speaking:
(naturally a very subjective category)

• Tokyo 5-1-75
• Boston 1-30-76
• Inglewood 12-22-77
• Copenhagen 4-13-78
• Newcastle 12-4-79
• London 12-8-80
• Buenos Aires 3-8-81
• Leeds 5-29-82
• Tokyo 5-9-85
• Stevenage 8-9-86

Honourable mentions of significant shows and recordings:

• London 9-13-73 - early radio broadcast in great quality
• Liverpool 11-17-73 - fantastic early document of the band, including the non-album track 'Hangman'
• Portland 4-28-74 - great recording of the band on their quest to conquer America
• Tokyo 4-19-75 - Queen's first reaction to their Japanese fans
• London 9-18-76 - audience recording debunks many myths surrounding this important show
• Seattle 3-13-77 - best document of the Queen / Thin Lizzy tour
• Copenhagen 5-12-77 - essential A Day At The Races tour recording
• London 10-6-77 - Queen perform an informal and unique show
• New York 11-17-78 - classic show, with strippers riding bikes on stage during Fat Bottomed Girls
• Rotterdam 1-30-79 - some of Brian's best live guitar work caught on tape
• Frankfurt 2-2-79 - many parts of Live Killers revealed here
• Paris 3-1-79 - epic final night of the Live Killers tour
• Milwaukee 9-10-80 - essential listening from Queen's US peak
• Puebla 10-17-81 - Queen vs. the flying shoes
• Leiden 4-24-82 - one of the best audiences ever
• Sapporo 10-29-82 - many interesting versions of songs played, including a full version of Teo Torriatte
• Brussels 8-24-84 - a truly brilliant vocal performance from Freddie
• Stockholm 6-7-86 - energetic opening night of the final Queen tour