Can I just add...
I have no fixed view on Foxton, and didn't at the time. I was asked for professional advice, and have summarised it. If the locals are now agin, they have changed their tune (or Foxton has changed it's locals!) over the last ten years.
Now, my opinion
When people dream up things like the Brogborough Whilr (Yugh) I tend to point out that Foxton Locks are one of the busiest attractions for land based visitors on the canals... without a lift.
The lift is now vastly different to when I did my study, an ironic case as you wouldn't have complained about spoiling the site then!
The Falkirk Wheel gets a subsidy, but by virtue of it's location between Glasgow and Edinburgh (Location Location Location?) It has transformed the tourist economy of Falkirk. Love it or Loathe it, it is truly Iconic and Original, I squirm when people talk of a "second Falkirk Wheel"
If the GU Leicester Summit is ever to be broad beam it needs a proper plan, with solutions at both ends proposed, even if they are built one at a time. This may not be a bad idea, as boats get more upmarket they run out of length.
My personal opinion on something I looked at professionally, The Newport Incline Plane is a waste of time, and if built will suffer from Shelmore embankment moving
The Whitchurch lift seems very odd, I would have thought a lock and a back pump would be more cost effective, and user operable.
The schemes I actively or passively support as a private individual are the Somerset Coal, The Wey and Arun (which I have worked on professionally) The Monty (ditto, but I supported before I worked on it) and the Cotswold (currently working on it). I don't think I oppose any at all. I have been an active or passive supporter of the Huddersfield Narrow and the Droitwich, one of which has been open a number of years and one of which will open next year (and I've been professionaly involved in both, but rooted for them before that time)
Oh, and the Bude Barge Canal, well, there's always got to be one hasn't there!