Phil Armitage posted hist 10 best day hikes, so far:
Berg Lake trail, Mount Robson Provincial Park
The Narrows, Zion National Park
Highline trail to the Grinnell Glacier Overlook, Glacier National Park
Conrad Kain hut, Bugaboo Provincial Park
Coyote Gulch, Grand Staircase – Escalante National Monument
Harding Icefield trail, Kenai Fjords National Park
Panorama Ridge trail, Garibaldi Provincial Park
Paintbrush / Cascade Canyon loop, Grand Teton National Park
High Divide trail, Olympic National Park
Best of the best?
I’ve done 4 from that list, enjoying Zion Narrows the most.
Leave a comment if you’ve an opinion.
besthike.com 
I did the over-nighter of the Narrows in Zion. Best hike ever, in it’s own way – I would only say, if you can: do the Narrows as a 2 day hike – it’s much more spectacular in the northern sections that you won’t see doing it as a day-hike. The canyon is almost narrow enough to touch each side, the camping is on amazing soft sand, and only 10 or 12 permits are released a day so the solitude is great too!
A personalized and polarized list: 2 hikes in the desert southwest and the rest way up in the northern alpine areas.
But lists always make me think: I’ve been to the Kain Hut twice, yet had forgot all about it, so thanks for the reminder!
A lot of people love The Narrows, as well they should. But it’s not often done by people familiar with the area. Instead, think the Buckskin-Paria Loop.
Can’t argue with that list. My top three are all on there: Zion Narrows, Harding Icefield, and Glacier Point in Yosemite. Looking forward to Garibaldi and Berg Lake on my BC/Canadian Rockies trip this summer!
Nice list. Here is my blog post about the Highline Trail in Glacier Park (lots of photos): https://bigskywalker.com/2017/03/12/the-highline-best-trail-in-glacier-park/