I vote for 'Ages' just because I'm listen to it frequently the last three months.
Personal faves?
'Tropic of Capricorn' (beautiful and majestic)
'Nights of Automatic Woman' (what a sci-fi title!)
As BM said, an overlooked album for no good reason.
IMHO, Edgar Froese appears as a world-citizen man in this album-I can't explain this easily -maybe it's because of the various influences in the music and in the titles.
Also, I love 'Stuntman' A LOT!
Sadly my turntable is out of service so I can't reappreciate 'Pinnacles' but I remember that I liked it.
As for his first records, I haven't listen to 'em yet: life is beautiful because -among other things- there's a lot of good music to be discovered'
-sorry for the bad English