Both are good surgery with good results. Blister grafting is faster result but may show little less match.
Melanocyte suspension transplant ( thats the technical name) surgery may show better match but may have little higher chances of failure
This is in view of lip affection as asked by you
Next Steps
it would be a good idea for you to opt for a direct online consultation and send photographs for your current situation and problem area so that proper examination and management can be suggested for your issue