Your poll is missing the "4.7 - 4.8 Million" option.
I voted "5.0 - 5.5 Million" because of the way Kinect is selling, which I also believe has put a damper on Nintendo's November 2010 numbers. Nintendo Wii numbers for November 2010 are down 10,000 units from November 2009 even though Nintendo's holiday lineup this year (Donkey Kong Country Returns, Metroid: Other M, Epic Mickey, Kirby's Epic Yarn, Just Dance 2, Wii Party, and on) is much stronger than last year where it was all New Super Mario Bros. Wii.
If the PS3 cannot outsell the 360 the week Gran Turismo 5 is released (PS3 803,000; 360 845,000)*, then you know the gap is going to grow.
*: Weekly Sales Analysis, 27 November 2010 - Gran Turismo 5 Debuts - http://gamrfeed.vgchartz.com/story/82906/weekly-sales-analysis-27-november-2010-gran-turismo-5-debuts/
