Comparison of box score data from the cities reported that both tours performed in (NOT all reported data, just the dates in common for both tours):
IAT:
Sportpaleis, Antwerp: 15,780 / 15,836 (99%) | $1,033,927 (1 show)
O2 World, Berlin: 12,477 / 12,477 (100%) | $609,712 (1 show)
Hallenstadion, Zurich: 12,180 / 12,240 (99%) | $900,936
The O2, London: 91,746 / 91,746 (100%) | $9,061,819
Manchester Arena, Manchester: 29,310 / 29,754 (98%) | $3,266,557 (2 shows)
National Indoor Arena, Birmingham: 22,384 / 22,420 (99%) | $2,437,695
Ericsson Globe, Stockholm: 10,640 / 10,640 (100%) | $728,113
Verizon Center, D.C.: 13,736 / 13,736 (100%) | $1,390,421 (1 show)
Wachovia Center, Philly: 14,971 / 14,971 (100%) | $1,377,995
BankAtlantic Center, Sunrise: 12,629 / 13,209 (95%) | $1,015,893
Philips Arena, Atlanta: 13,949 / 13,949 (100%) | $1,281,632
Toyota Center, Houston: 13,130 / 13,130 (100%) | $1,158,361
American Airlines Center, Dallas: 11,319 / 11,906 (95%) | $981,124
Staples Center, LA: 12,738 / 14,217 (90%) | $1,437,146 (1 show)
United Center, Chicago: 13,852 / 14,773 (94%) | $1,359,250
The Palace of Auburn Hills, Auburn Hills: 13,540 / 13,540 (100%) | $860,250
Molson Amphitheatre, Toronto: 15,427 / 16,000 (96%) | $1,085,943
Bell Centre, Montreal: 6,732 / 8,630 (78%) | $640,294
Mohegan Sun Arena, Uncasville: 6,729 / 7,222 (93%) | $572,150
Izod Center, NJ: 10,435 / 13,702 (76%) | $968,245
Madison Square Garden, NYC: 27,580 / 27,710 (99%) | $3,526,375 (2 shows)
Shows reported: 29
Total tickets: 381,284
Total gross: $35,693,838
Avg. attendance: 13,147
Avg. Gross: $1,230,822
TMCSWT:
Sportpaleis, Antwerp: 34,785 / 34,793 (~100%) | $2,927,440 (2 shows)
O2 World, Berlin: 27,632 / 27,632 (100%) | $2,015,780 (2 shows)
Hallenstadion, Zurich: 13,000 / 13,000 (100%) | $1,154,980
The O2, London: 97,082 / 98,212 (99%) | $9,733,780
Manchester Arena, Manchester: 44,739 / 45,064 (99%) | $4,650,150 (3 shows)
LG Arena, Birmingham: 29,046 / 29,450 (98.6%) | $2,952,937
Ericsson Globe, Stockholm: 13,934 / 13,934 (100%) | $1,318,690
Verizon Center, D.C.: 27,133 / 27,133 (100%) | $3,110,937 (2 shows)
Wells Fargo Center, Philly: 14,671 / 14,671 (100%) | $1,491,320
BB&T Center, Sunrise: 12,269 / 12,269 (100%) | $1,328,330
Arena at Gwinnet Center, Duluth (Atlanta): 10,662 / 10,662 (100%) | $1,089,710
Toyota Center, Houston: 11,935 / 11,935 (100%) | $1,320,925
American Airlines Center, Dallas: 13,758 / 13,758 (100%) | $1,427,075
Staples Center, LA: 27,760 / 27,760 (100%) | $3,372,714 (2 shows)
United Center, Chicago: 14,154 / 14,154 (100%) | $1,688,865
The Palace of Auburn Hills, Auburn Hills: 13,901 / 13,901 (100%) | $1,414,609
Air Canada Centre, Toronto: 14,610 / 14,610 (100%) | $1,690,500
Bell Centre, Montreal: 14,609 / 14,609 (100%) | $1,570,565
Mohegan Sun Arena, Uncasville: 7,473 / 7,473 (100%) | $702,825
Izod Center, NJ: 14,264 / 14,264 (100%) | $1,598,000
Barclays Center, NYC: 41,907 / 41,907 (100%) | $5,357,970 (3 shows)
Shows reported: 35
Total tickets: 499,324
Total gross: $51,918,102
Avg. tickets: 14,266
Avg. gross: $1,483,374
Mrs. Carter Show slaying. The only IAT city to gross more was Atlanta because she done the Philips Arena instead of the Arena at Gwinnett Center. I've also bolded the IAT cities that had a higher attendance since we were speaking about it above.