Just back from doing the Dales Way then the Cumbria Way.
We found the DW pleasant, but not great. The first 20 miles were nice but busy. Very touristy, as you would expect. The Cam House bit was superb. The long road walking through to Dent was dull as was the endless slogs through fields, over stiles and avoiding cattle. A number of the paths before Burneside were seldom used and overgrown. Sorry, on balance not a fan of the DW. I recall comments made about the Offas Dyke Way about endless farmers fields, cows and bulls, stiles etc. We found the DW similar but with chunks of road walking added. OK but not a classic. Just our opinion! Talking to others on the Way or about the Way opinion seemed to be split 50/50. Those new to long distance walking liked it, those more experienced found it lacking challenge.
By contrast we found the CW fantastic, in particular the Langdales, Stake Pass and Back o' Skiddaw. Despite it being Lakeland we saw very few people, although the weather - we spent 5 days on each and only had one day without rain - may have helped. Superb stuff!
We tried to follow the Cumbria Coastal Way to link the 2 up - Don't!! At Greenodd the path vanishes and you are left walking on a very busy road.
Perhaps having previously done the Coast to Coast and Pennine Way meant we have higher expectations as to what we expect from a long distance walk!