I'm well aware of the Falcon Knife earrings. I just didn't like leveling her up and not seeing stats increase. At least Ragnar can wear good armor and sees speed increases basically forever. I used Alena for the whole game when I played on the NES, but when SPOILER joins you in the DS version I switched her out. SPOILER is a pretty cool (if broken) addition, and I guess I liked the idea of a party of four swordsmen.
Wait? You like running a party of the Hero, Ragnar, Saro and Taloon?
Yes, I know you're referring to Kyril.
And no, Saro's name isn't worth spoilering. The fact that he's playable at all is just stupid even if it is amusing, and unlike DQV, DQIV's rewrite doesn't really add anything meaningful to the game. Esterk is still DQIV's resident Demon Lord and not even Squeenix can convince me otherwise.
Anyways, I'd like to add Phantasy Star IV to this list. Namely because you have a fifth party slot that five characters are trying to compete for and no one's beating Raja to it on their own (six if we include Alys, even if she does drop out of the running early on for her crappy Obi-Wan growths; seven if we were to also include Seth, but who the fuck gives a damn about Seth?).