Rush was my first concert (my sophomore year in HS). It was the Permanent Waves tour and I really liked that album (and still do). I wasn't a huge Rush fan though and only owned PW and 2112. I didn't like Tom Sawyer when it came out and fell away from listening to them after that.
My 18 year old son has really gotten into classic rock and I bought him 2112 and Rush's latest greatest hits CD to give him a taste of what they are like. I like hearing the songs again but I still probably wouldn't seek them out.
Pink Floyd's The Wall came out my soph year and I loved that album and about wore out my record. I still love that album though Wish You Were Here is my favorite PF album. I call myself a Pink Floyd fan but in reality I basically just like Meddle, Animals, Wish, The Wall and Dark Side. The Final Cut sucked, the post Waters stuff is okay but not great and I'm not enough of a prog fan to get into their early stuff (though I know most of the songs).
I didn't like Queensryche when they came out and haven't heard anything to change my mind.
I am not a big prog rock fan (never liked Yes or ELP) but I still have some records of some of the bands on that top 100 list like Uriah Heap and Eloy. Eloy is okay but I mostly bought the record because I liked the album art (the artist did a lot of metal album cover art in the 80's) and it was clear vinyl.