Road bike recommendations

I specifically meant Canyon - either way, even if the Carbon is stiff, it won't be AS stiff.. and it will eliminate loads more roadbuzz and all that jazz

All the German brands are/where known for it. Interestingly Canyon have been praised for the amount of comfort they've tuned into their alu offerings. Still, you're right.

I personally think that bike-fit is more important than these small differences in frame compliance. If your body weight is well distributed on the bike, you'll be a lot more comfortable over distance.