They both also get the Megid tech. Chaz's is better though as it doesn't hurt party members too.
But it's less powerful. When Rolf uses it, all enemies are wiped out (well, except if it's a boss). Not true with Chaz.
Rolf lost Nei and Chaz lost Alys but he still had Rika so Rolf did suffer a bit more than him since he lost the woman he loved.
I remember it being said that Nei loved Rolf, but to Rolf Nei was a little sister.
the somewhat air-headed Nei (no offence to her)
Air-headed? Where does she display this air-headedness? If anything, she's innocent.
I don't get why Nei dies when Nei first is killed? This isn't like the DBZ Piccolo-Kami thing where they are the same person but sepeared.
Actually, it pretty much is (though it's Kami and Piccolo's father who were one person).