ho ho ho one thing i kinda regret about Lords of Shadow as a whole, is the "history" of the whip. There's no sense of importance to it story-wise, it hasn't been passed down through generations. Gabriel destroyed the first Combat Cross, Trevor gets an entirely new 1 (Rinaldo must have created more than 1), and Simon gets a leather whip. The only reason the Combat Cross is referred to as Vampire Killer is because it has a stake on the end. The Vampire Killer was unique in the classic canon, not just because every Belmont had wielded it at some point, but it was quite literally the "Bane of the Children of the Night." Julius even goes as far as to seal it within the Demon Castle, which would forever weaken the "Creature of Chaos" due to it's sheer power (something like, imagine being in Hell, nothing but chaos & evil everywhere, yet you have just 1 little drop of Jesus' blood in your possession, you will be invincible, no demon can stand against you, not even Lucifer himself). Even Alucard gets his own whip now. For this reason, I still prefer the REAL Vampire Killer to the Combat Cross (despite how more cool looking it is & more appropriate functionality-wise). There's still various whips present within the classic canon universe (The Hunter's Whip from CotM, for instance), but they made sure that Vampire Killer remained unique amongst all. I think it would've been better for the LoS story had they kept the original Combat Cross Gabriel used, and make Trevor wield it, etc. Something like, "the same weapon I once used, is now used against me" deal, ya know? Missed opportunity, imo
Maybe I'm wrong, there might be some plot point that makes them all magically connected once MoF is released. But as it stands, now, there's nothing really "special" about the [various] whips in the LoS universe.