[b]Compelling[/b]: I think I'll finalize it in that hunters with training have a great deal of resistance to the vampire's compel, some even being able to overcome it depending on how rigorous their training was and how much experience they have. Granted, an elder vampire whom is skilled with compelling would offer a more challenging match. I think I'll eliminate all physical fortitude with this, leaving it based on the willpower of the individual -- sort of like a mind battle? Though, I do agree in forewarned, forearmed. So people that know of the ability or, at least, have experienced it, will generate resistance towards it. So excessive use on the same individual would be unwise. To add to this, a vampire that compels an individual that offers known resistance will help suggest that the individual has experienced a vampire's compel before, the amount of experience depending on their amount of resistance. Or maybe the individual just has good willpower? Not sure on this.

[b]Regeneration[/b]: Werewolves will have stronger regeneration than all other supernatural species, which helps add to their 'tank' title. Their regeneration is stronger in their werewolf form, but their regeneration is still strong in their human form. Scarring is very rare since their regeneration is quick. Their blood loss is also minimal since their blood will clot at a very fast rate. If you strike a werewolf with silver, their regeneration on the given area will be weakened a substantial amount, and would be more prone to scarring, depending on the severity of the wound. Werewolves are capable of regenerating missing limbs, but this rate would, of course, be slow. 

Example: A minor cut would heal completely in a matter of minutes. A gunshot that doesn't penetrate through vital organs should heal within a day. When vital organs are injured, the werewolf is still capable of regenerating, but at a slower rate. When affected by silver, the rate of healing will be similar to that of a human.

Vampires will have strong regeneration, and this will be heightened through feeding. Vampires are capable of entering long slumbers to recover from severe injuries/poisons/toxins.

Example: A minor cut would heal within a day. A gunshot that doesn't penetrate through vital organs should heal within a week when feeding at a regular rate. When a vital organ is injured, they'll be weakened substantially and they'll be required to fall into a slumber in which their body can focus on healing, only to awake thirsting for a great deal of blood. The length of their slumber depends on the severity of the injury.