Although it’s not a hard and fast rule, I often think that the first album you hear by a band is the one that sticks with you, although regardless, I still think WYWH is the best. But the first Camel album I heard was Moonmadness, which I also happen to think is easily their best, and I’m in the minority whose favourite Genesis studio album may be And Then There Were Three, which again was the first one I heard.
I know it’s considered blasphemy, but I always thought Dark Side was hugely overrated, although I’m aware of its importance in the story of PF. I find it a bit claustrophobic, whereas WYWH is anything but.