I mean, in Civil War he had the flesh burnt out from his bones by that Nitro douchebag and he somehow managed to rebuild his entire body in matter of hours. read more
But I don't know really, since Wolverine has been so overrated in the past years that he's pretty much indestructible by now, and Deadpool's awesome healing factor has always been the same. It's definitely a tough choice imo. read more
And also, Deadpool’s healing factor is faster than that of Wolverine. Wolverine gets pain by any injury which makes him slower to attack back, whereas, Deadpool does not get pain and can attack back faster, which makes Deadpool better than Wolverine. X-23 has a better healing factor than Wolverine and little slower healing factor than Deadpool. read more
Deadpool's as long as Wolverine has adamantium attached to his bones. When Magneto rips it off, it actually causes Wolverine's healing factor to go into overdrive. read more