titanium v carbon

ftt
ftt Posts: 133
edited July 2007 in Workshop
OK guys here goes I can buy a new frame.One to replace my fonderist mega plus (aluminium) frame. Which I would replace with a titanium one which I would use to commute to work and use as a hack bike/training bike through the year.Or I can get a new Canyon carbon race frameset to replace my kinesis kic, which would be used to do road races crits and summer miles.But I can only get one or the other,so which one.

Which would be the best way to go and why ?

6'3" and 13 stone 2lbs, and commute in all weathers
Cheers ftt