Minolta X-700 + MD 24-35mm f/3.5 + Kodak Gold 200
Fujifilm X-E2 + 18-55mm + Classic Chrome
The second shot was taken by my wife, who stood one step behind me.... Mine is better, isn't it? 😉
Carbon fiber is not really all that much lighter than aluminum but it absorbs vibrations better (wood does that too but it is heavier).
In practice, for most users and situations, the difference is price is huge while the gain in performance is very small.