I don't know Saren's role in Mass Effect, and though I've seen a YouTube LP of SOTN, I don't remember how often Alucard meets Dracula there outside of the final boss confrontation.
I think I just thought about individual character strength at the time and thought "Alucard is so much stronger than anyone else in this division, he's going to go to town!".
Looking up IGN's entry on Saren in their top 100 villains list, it seems that Saren is little more than the main antagonist of the original Mass Effect and that, despite some serious backstory, he doesn't actually have much of a role for Shepard. At least Alucard is Dracula's son!
Okay, I'm sticking with Alucard > Shepard. Besides, we all saw what Alucard did to Magus last year, right?
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Currently Playing - StarCraft: Brood War