cfwake
The trip was done both ways a couple of years ago by a [former] Ppruner 2 Donkeys in his TB20. You can read his account of the trip
Here.
I can't really add much to the debate about the best 150-160 Kt cruiser, expcept to say that I have a limited ammount of time in the TB20 and C182 RG, and that the TB is quicker, and nicer overall, but the 182 is probably a better short field machine.
Brooklands