PerWaves, a guitar-driven album
MP, in which the cracking of Geddy's basswork impresses me the most
Signals, where Neil's drumming is the most striking, however I must note Alex's guitar seemed to be reined in, featuring 3 songs without a guitar solo
Screaming back in GUP which features a particularly manic guitar sound and I think Alex was quoted as saying this was his favorite Rush album, but it's the synths that move particularly to the fore
And finally PowWin which, at least to me showcases Geddy's singing.
Footnote HYF which features more of everything!
It took me a while to get access to the site and these ideas were stewing in me for a while. Thanks for letting me get them off my chest!