Samus already beat Dante. In the first Melee, she won in the Quarter-Finals.

Raziel... Well, I never liked him as much as I liked Kain. You see, I knew I could probably beat Dante with Raziel, but I chose Kain because I really like him. Also, I figure Mr. X would've proven a harder opponent to Dante considering he's much faster than Birkin. Hell, Nemesis would've been a good choice. However, I chose Birkin because he is my favorite.

And, Magus, I never played whatever game he was in. (Was it Chrono?)