Why would you go with a road bike over a crosser as a bad weather bike??? Let alone a rough road bike? Go for the Tricross. Just make sure you put the right tyres on it - probably something like 35mm Duremes, this way you'll get the volume and contact patch (and hence wet grip) you need. Read the canti faq sticky and upgrade that front brake as described.
Otoh, if you insist on running the Tricross with 25mm tyres then you might as well get the road bike.
Reading
http://www.bikeradar.com/news/articl...e-myths-29245/ might help - basically, choose the tyres for the conditions you want to ride, and the bike to fit the tyres.
There's also a thread on Duremes in this subforum - 35mm Duremes are seriously fast, excellent on rough roads, and have outstanding wet grip. You could go a step up to Extremes (Duremes with more tread) but they'd be slower and you don't mention riding singletrack.
Good luck!