I had trouble deciding too as I like all options for different reasons.
Aplix is great for quick nappy changes, but didn't work well in summer as lily would just rip her nappy off and run naked away from me
Poppers are great as they are highly adjustable and are Lily proof
. I also prefer them on wraps and I agree with tory (I think she said it) that my poppered pockets (fuzzis) are much more slimmer than my aplix so thats great for under clothes.
And I use nippas when I'm having a lazy nappy day at home as we often just use towelling squares which are great and heaps easy. Nippas are just so easy to get the fit nice and snug too.
Soo...... I voted poppers, if I had to choose one!