Choices, choices, choices...
I bought a Raven Tour mainly for commuting. 31 mile round trip, on a route including ex railway track, canal path, country roads and duel carriageway. It has coped well with all of it plus everything else I've used it for. Off road it's not as manoeuvrable as a MTB, I could take it just about anywhere, but it would take more care and be a bit slower. Also mud tends to collect under the full mudguards, a few times I've had to stop and clear it. I'm not sure about the different sizes between the Sport and Tour, it doesn't matter how many they do as long as one of them is right for you. I'm a fan of hub dynamos, I have two, one in each wheel size. However off road I'd always supplement them with a rechargeable, sometimes when I need the most light is when I'm going slowest.
For me, in your position, the deciding factors would be how often I take the off road option, how technical it is and surface type, what else I want to do with the bike and if I was keeping the MTB. If I was doing mostly on road, I'd get the sport and keep the MTB for occasional off road. If I wanted to use just one bike and the off road was reasonable surface and not too technical I'd get the Tour. If one bike and muddy/technical off road the Catalyst.
Whichever you get, you'll have 100 days to change your mind. I think they're all good bikes, if I could afford it I'd have one of each!