I use AI2's - cos the shells dry really quickly and the boosters can go in the dryer if needed.

I have OSFM's (dragonfly magik) that I can use on both girls.. and I have sized Widdlewuns for DD1 because I find they are more absorbent to hold her huge wees. DD2 isn't as big a wetter as her older sister, so the DM's are perfect for her

I will say that I love the sizing of the Widdlewuns though, mediums are like from 7-14kg or something, so it covers a HUGE proportion of their time in nappies. So if you do get sized, get ones that have a good margin on them for weight ETA: DD1 has only just moved into a large and she's 2. And its only the rise that she has outgrown unfortunately!