I can't say I have tried plenty of amps in my life, but I find to be "generally" true that tube amps provide a fuller sound, and "drone" better 
So @YawningJorin if I was after a heavily distorted hefty "drone/doom" sound... I'd go for tubes.
SS state pres may have a beautiful distortion as well but I wouldn't call it "earth shaking rumbling". Seems a kind of growl I'd appreciated more for fast more "punk" riffage.
I'm not an expert tho, just thinking of the few amps I tried and rigs used on record I love

So @YawningJorin if I was after a heavily distorted hefty "drone/doom" sound... I'd go for tubes.
SS state pres may have a beautiful distortion as well but I wouldn't call it "earth shaking rumbling". Seems a kind of growl I'd appreciated more for fast more "punk" riffage.
I'm not an expert tho, just thinking of the few amps I tried and rigs used on record I love

