bobzeller wrote:I can't use cycle.travel with my windows computer apparently.
You should be able to (and people do!) but there might be something playing up with a particular browser. I'm away from home with my Bike Friday right now
, but when I'm back I can take a look - if you like, drop me a PM with your Windows and browser version, and a quick description of the problem you're having, and I'll investigate.
bobzeller wrote:That's why I was asking if there was much of a difference in the routing criteria of the various websites.
If you're asking a site to suggest a route, yes, there's quite a difference. Most sites use Google Maps' route-planner as their backend, which'll often produce good results but will also send you along the A30 in Cornwall or over a ploughed field in the US.
I believe RideWithGPS have their own route-planner using an OpenStreetMap-based program called Graphhopper - its results aren't to my personal taste but I'm sure they're great for others (life would be boring if we all liked the same...). Cyclestreets use their own in-house routing engine which is excellent, and again uses OpenStreetMap data. cycle.travel uses another OSM-based program called OSRM, but very heavily customised.
But if you're just using the site to plot a route you already know, typically by going click-click-click at each junction, there's much less difference between them.