For vampires I'd say a blend of classic, though with a few more nonsense stuff.
They can survive in the sun, but it causes their, well, corpselike pallor to be shown, and if you look closely, you can tell it in their eyes - red tinted pupils. They also hate being in the sun, it's a last resort, because it hurts the hell out of their eyes. Look into the sun, they're blinded permenantly. Their reflections are slightly clouded, and they seem a little out of focus in pictures. Enough to be noticed but not enough to arouse too much suspicion if they're careful. Holy Symbols CAN hurt them, but they need to be actually held by an ordained priest or whatever of that religion. So your average shmuck with a cross is something to laugh at. Garlic is something they're just slightly allergic to. Stakes hurt like fucking hell, and do kill them - but you know how hard it is to drive a wooden stake through the ribcage? Let alone through the ribcage of something strong enough to rip your head off like a teddybears? Not easy. The counting and all that other stuff is bullshit, but sometimes when they go crazy over the centuries, things like that happen.
For werewolves, I'd go like this - It's emotion based, but the moon plays a major, major factor. The fuller the moon, the easier it is for them to shift, and the more likely they are to shift. It isn't a voluntary thing either - get too angry, get too into, well, survival instincts, and the change will trigger. They are fast, strong, and insanely tough - the stories of them being able to fight a vampire are pretty much 100% true, and they'll usually win because they don't give a shit about injury while in this change. The only instinct the wolf form has is to KILL. KILL. KILL. They are 9 feet tall wrecking balls of destruction, and the werewolf usually can only guide it slightly conciously. Werewolves aren't the only shifters like this, but they're the best known.