The "and more" has to be something that is always better to have.
You're undermining your own point, the simple fact is that the mechanics in Dominion make certain effects/properties beneficial in one context and harmful in another.
On the contrary, you are making my own point: nothing is
always better than any other thing, as the edge case patrol (of which I'm a paid up member) can attest to. If "strictly better" is going to mean anything, and have any use for discussing cards (including fan cards!), it has to be something other than "this effect is
always better", because that is never true. So either we stop using the term altogether, or we define it in a way such that, even in real games sometimes, you might prefer a card that is strictly worse.
It seems having discarding as a negative effect is controversial. Yes, there are combos with draw-to-X, obviously Tunnel, and Poor House. But I hope we can agree that "+5 Cards, discard 4 cards from your hand" is strictly worse than Embassy, "+1 Action, +3 Cards, discard 2 cards from your hand" is strictly better than Warehouse, "+2 Cards, +2 Actions, discard 3 cards from your hand" is strictly worse than Inn, and "+1 Action, reveal any number of cards from your hand, +1 Card per card revealed" is strictly better than Cellar. OK, so discarding doesn't seem so bad when you do it in small amounts, especially when you choose the number of cards. I've presented a definition of "strictly better" which the community says doesn't work for Oasis, and probably Hamlet; but if the other definition can't even say that Hunting Grounds is strictly better than Smithy, I'm going to think that my definition is better.