I use a mixture of different brands, because I was unsure which to buy when I started,
personally I really like the Motherease nappies and wraps, (some of which I got from the county council for cheap as they were promoting washable nappies)
I like them because I have been using all my nappies for nearly three years and they are on my second child now,
and the Motherease ones still look practically new, and have fitted from start to finish, and because they use poppers my DS's have never been able to pull these ones off. (which as they get older they do try and do on a regular basis)
whereas I have also got some TotsBots nappies which have gone rather thin and TotBots wraps which have gone very yellow.
The Bambinex ones I have do not do up any more as the velcro/applix has stopped sticking.
I have long thrown away some from Little lambs as they lost all their shape and velcro stickiness very quickly.
I have approx 20 nappies and 4 wraps and wash them every few days
Mostly I have bought them online as this has worked out cheaper than in the shops