They are almost strictly worse, yes. You only use them if you want O-ring #2 or FH#2. There would have to be some super niche interaction for something like FH to be worse...like somehow redirecting his ETB on the stack (is there even a card that can do that? maybe getting mindslavered or something) or if one more power REALLY matters for some reason.
Card advantage is not the same thing as card draw. Something for 2B cannot be strictly worse than something for BBB or 3BB. If you're taking out Swords to Plowshares for Plummet, you're a fool. Stop doing these things!