It's definitely 3rd class depending on how your choose your route - I definitely used my hands/arms for upward movement. I'm not familiar with the two other peaks you mention - so I can't compare them, but I didn't encounter any 3-5' blocks in my routes on cirque - more like 1-3' for the most part..

I found this video on youtube of Cirque - not sure how they approached it, but seems they went up the side I did) - if you skip to around the 5 minute mark you can see video of the scramble up the face - this seems in line with my experiences (I've done the peak 3 times now): https://www.youtube.com/watch?v=pNx6MjJNkXs&ab_channel=RudyFleck

Hope that helps!! lemme know if i can be of other help laugh

=)tif