I'm confused and i've tried re-watching some episodes of TVD but I haven't found my answer, can someone answer my question?????
On it's own, no, I don't think so. They need human blood for survival and their powers/healing to kick in.
However, Mikael managed to start to feed on other vampires but after looking at an episode in season 3 when Esther is going to remake Alaric into an Original she says she made her husband a vampire hunter, meaning it's possible she made him different and that he could feed on other vampires or he learned to do it over time.
Some other vampires (ex. Elena) have drank vampire blood too, so I guess it could have same properties as human blood, but it tastes differently. So I guess it could heal vampires, but vampires don't like that kind of blood very much.
I wonder if it's psychological. While human blood is definitely what they are naturally supposed to drink Mikael managed to do it because either Esther made him a vampire hunter from the beginning as a fail safe to hunt down their children in case they went insane or something or he didn't like taking innocent life and therefore started a habit of drinking on vampires, I assume they must be healthy as partly the blood he'll get will be from his victim's (vampire) victim (human).
In the case of Elena when she drank from Damon, I wonder during the time when she was sired and if let's say Elena hurt herself and needs blood to heal up, Damon says drink "from me, you'll feel better" due to the sire bond this will trick her body to accept his blood as almost as good as human blood and if Damon is not currently hungry or hurt in anyway it will work likely work.
It's fun speculating about these trivial facts that they never directly take up in the show, would probably take too much time.
I'm not sure if Klaus's blood heals anyone any faster, it stops the poison from a werewolf bite as far as we have seen on the show and I'm pretty sure Hayley is immune to a werewolf bite, even a hybrid bite. (the poison, not the bite itself)
As for regular vampire blood I don't think it makes a difference for a werewolf as they have a natural healing ability albeit I think it's worse than vampires. Than again I think vampire blood heals a witch even though they're supernatural so it's possible it speeds up the healing even faster.
What do you think?