This is also a tough call for me.
On one hand Alphina's Sogna's original gangster, but on the other, Diablo is...Diablo. He's the mother fucking show in Viper RSR, and has that final boss status. Now, Alphina has a bit of an advantage in that he also dated an angel and has two dicks and hangs out with Carrera and Co. on a regular basis, but Diablo fucked Julietta, and she's easily one of the most endowed Viper characters(Fucking her is like winning the lottery!).
I'm almost angry at the fact they're vs. each other this early!
I think I have to put more thought into this before I vote. :|