The big thing you need to consider when looking at power though is the quality of opposition faced, Aldo vs low/mid level guys left a trail of destruction and I think he would again today.
Connar's foot movement is good I agree but the big potential weakness I see vs Aldo is his head movement and hand speed, for a 145er he's really not that quick. I won't be at all supprized if he takes a hell of a lot of punishment in boxing exchanges with Aldo.
Sonnen was a clown/jobber and McGregor is a real fighter with skill
title not matching OP is always fun.
yeah, Sonnen was a top 5 guy, but not the clear #2 guy, yet potentially a tough fight. There's the comparison.
other than that, Aldo's a fast, explosive striker, but is flatfooted. Conor has the best footwork at FW, something Aldo hasn't faced aside from Hominick, who's distance is closer than Conor's and who stays at that range rather than moves in and out. Conor also has power and a chin, unlike Hominick, and Aldo's not been deadly on the ground.