Eh... I don't enjoy AC as much as the two acts you've mentioned... but they're not exactly sonically similar. I honestly would have never thought to compare Cooper to Bowie and/or T. Rex. Cooper's somewhat heavier and messier. Their good stuff is GOOD, but they don't have as solid a body of work as Bowie or Rex, imo.

Batreleaser was right to recommend the Killer album, as it's a stunner.

I'd personally rate Killer and Love It To Death by Alice Cooper above anything by Bowie or T-Rex.