(Rush, Genesis and Yes had a few good moments past their prime, so I'm willing to forgive them a bit.)
All in all, the Kansas album provided me with approximately 55 minutes, I'm guessing, of material worth relistening to. Only great songs are "Carry On Wayward Son," "Icarus, Borne On Wings Of Steel" and the first two on their debut album (which are just bar band tunes) and a couple AOR songs on the 1983 album.
I will not be relistening to these albums in the future to see if I got them right the first time.
I've heard enough Uriah Heep to know that listening to their albums would be a complete disaster, I made it through a couple listens apiece of Very 'Eavy...Very 'Umble (gawd, that cover art!), Demons & Wizards (Roger Dean having an off day!) and The Magician's Birthday, and that was enough. There were some hilariously bad songs in there like "Come Away Melinda" and "The Magician's Birthday" but for the most part just boring 70s hard rock with dumb fantasy lyrics and bum badum badum badum basslines. Pass.
Styx, I can forgive a few good songs, but Dennis DeYoung really was both an embarrassing vocalist AND an embarrassing keyboard player AND an embarrassing lyricist, not to mention that he looked like an SNL character and was well into his 30s when he ruined Styx with that "schlock opera" they put out in 1983. No Kansas song is as funny-bad as "Mr. Roboto" and none as genuinely embarrassing as "First Time."