Everyone I know who was paddling Foxton and Waterton as progression runs all paddled Foxton a time or two before paddling Waterton. Waterton seemed pushier to me and might be more intimidating to many progressing boaters. Both are easy to scout, Foxton from the road (top boulder garden being most important as stated already), and Waterton with an easy hike.
I found it worthwhile to hike in and look at everything on Waterton, but that was back when Waterton was a little more imposing for my skill level.
Foxton was paddled on my 46th and 47th days of paddling and is documented fairly throughly on these links with photos and video.
I have already been advised a long time ago that Foxton is just called Foxton, not Foxton Creek (even though it seems like a creek). I will correct that on site with new revisions this season.
Foxton - Paddle Day 46
Foxton - Paddle Day 47
It is fun to reread Paddle Day 46 for me. That is the day I met Ivan, my current main paddling partner. You never know when you will hook up with the right paddlers to help you progress and move forward. That was an important day. Ivan and I ended up being at the same skill level and both wanted to progress further than others we were paddling with at the time. I made it to Gore Canyon and other fun big water much faster as a result.
As I get back into paddling this year after shoulder surgery last August, I am finally getting around to updating my other long overdue journal entries. Equally detailed Waterton Canyon photo/video entries are almost ready to be uploaded and will be available on the site before this season is over.