im going to have to agree with NHC's landfall intensity, and with one addition: New Orleans' structural wind damage was not what you would find in teh western eyewall of a cat v--most of the damage was limited to roof damage, and New Orleans itself only experienced 90-95 mph winds (definately not Cat V eyewall, even if on teh weaker side)

i am willing to agree that Dennis may have been 155 at landfall in Cuba though, as NHC's only stated reason for not classifying it so was the pressure of 937 mb (even though Charley was classified in 2004 at 150 mph with 941 mb pressure), and both had very small eyes and tight circulations