It's true. If those are the worst Pokémon you can come up with then Gen 3 clearly is the greatest generation. Ain't a weak link in the bunch.
You're joking right? Luvdisc simply isn't good for anything at all, it has a design that makes it look like a pillow in the Honeymoon suite, a pitiful movepool, nothing to speak of in terms of stats and nothing to redeem it.
Oh and I forgot to mention the 'copy/paste is a designers best friend' pokemon which are silcoon/cascoon(silcoon will later evolve into beautifly aka, the wannabe butterfree.)
Volbeat/illimuse (they are designwise basically the same pokemon and plusle/minun (if plusle were designed first would that make minun a copy of a copy of pichu (which is basically a copy of pikachu)
Also ludicolo, from the people who brought us jynx we get another ugly racist stereotype.