Hrmm.. I'm still debating whether I'm going to do Toronto-Montreal or Toronto-Ottawa-Montreal. I've done both before but it's the Kingston-Ottawa portion that's a bit annoying. I took Highway 10 last time but it's a narrow two-lane highway. I've been looking at my backroads map and, IMO, really, there are more backroad options if you go to Brockville/Prescott and head north than if you start at Kingston..