If anyone out there fancies a 4 day (3 or 2 for the uber fit people amongst you) bike packing challenge then I would recommend the Wessex Way route from Weston Super Mare -> Eastbourne.
I mapped the GPS route out last year and did the ride over 4 days. 2 days last week and 2 days this week. Plan originally was to do it in 3 days, but the 83 miles on day one over the Mendips and then over Salisbury Plain, took it's toll, and I decided to cut it in half and do it over 4 days. Still it was a great ride and with the weather we have currently been having I could count the number of muddy patches for the whole 250 mile route on one hand.
The route is here if you fancy it.