I voted nippa, its been my fave since he was born. When he was small I hated aplix as I felt it added so much bulk to the nappy but now it is slowly growing on me!!! Poppers do my head in some days, espeacially if Louis is very grouchy and wriggly and you have a popper nappy then a popper wrap as well, I put up with them for the sake of my lovely BB Bamboo and swaddlebees as well as my EH hemp in the past!! I do prefer popper wraps though (but aplix when he was newborn!!
I was actually thinking about this last night as I was quickly putting his night nappy on, the nippa was on in such a quick couple of seconds, probably quicker than I could do aplix and loads quicker than poppers. I was thinking that its a shame so many people are scared of them as a 'fiddly' option!!