What are the 'relative' advantages of the different methods? [=what are the advantages of each method compared to the others?]
The car might seem expensive, but 'it's all relative'. [=the car is expensive compared to some cars but not to other cars]
I'm a 'relative' newcomer to the area. [=I am not really new to the area but I am more of a newcomer than many people]
(..) for we knew each other well. The years have been... ...kind. Thank you. We must guard against outlaws who would kidnap a relative of the King. You can see I am not one of those. Perhaps. Now remove yourself from here. I would, but I'm sworn to protect you. Protect me? (..)1991 Robin Hood: Prince of Thieves