I currently own a CF road bike and a TI mtb. I love them both and found both to have similar characteristics (absorption and stiffness). I had a aluminum mtb and felt every pebble I rolled over. Years ago (almost 30) I had a steel Raleigh. Great bike, great ride, except in corners. Now granted steel has come a long way in 30 years but I just remember the flex in that frame, and the couple of crashes it caused, to make me shy away from steel.
The only two materials I would own a bike made from at this point are CF or TI