You need to ask yourself what you want out of the bike, if it’s purely for road rides get a road bike. If on the other hand you may want to dabble at racing cross or do a bit of light touring or even just have a bike that will enable you to ride a few bridle ways mixed in with a bit of road then a cross bike could be the way forward.
I bought a Genesis Vapour as i wanted the latter and also use it for commuting (i find the slightly more relaxed geometry easier in traffic and in towns) and as a winter road bike.
If you specifically want disc brakes Genesis now do the Vapour in a disc version and it’s probably a couple of pounds lighter than the CdF.