Reasonable on 21 September 2009
From all my experience with each (not just my own consoles but friends) so far I'd say the order is
1 - Wii - silent basically
2 - PS3 Slim - pretty quiet
3 - PS3 phat - okay volume but can get loud after protracted gaming session. Quiet when playing media such as BR, DVD, etc.
4 - Recent 360 models - still pretty loud, but quieter than...
5 - Original 360 models - so loud the volume was a negative factor in my consideration of whether to buy one
Try to be reasonable... its easier than you think...
