I used a good mix of pockets full time for 8 months. The best (by far) I found were pocket bots you get a very helpful and personal service too which is a huge help when you are dealing with pocket nappies which can be a bit of a minefield. I never once had a leak with these and they are very well made too. They also come in loads of different colours and patterns if you like that sort of thing .
I also tried
Mommy's Touch - got some leaks, difficult to fit if you aren't used to them so childminder / babysitter may struggle to get a good fit.
Swaddlesbees - nice and slim, leaked occassionally. You have to buy the swaddlebees inserts though so that limits you on choice, price etc
Fuzzi Bunz - occassional leaks, leg elastic seemed to go pretty quickly on these though.
Lollipop - bit bulky for day use
Minkis - same as lollipop
Wonderoos (by Hip Hip Baby) - these are a birth to potty and I have recently used them on newborns and very active toddlers with a lot of success. Don't bother with their own inserts though - they fall to pieces.
A have a friend who is using bumgenius and is finding issues with the workanship - not sure how long the velcro and leg elastic will last from her experience.
Insert-wise Green Acre Design (GAD) inserts are fantastic, avoid hemp inserts unless you buy second hand or want to do a lot of prewashing. Supermarket value microfibre dishcloths make excellent, cheap boosters. I don't use a hemp insert without one on top to quickly soak up the liquid (hemp takes a while to absorb). The dishcloths fit neatly inside a GAD insert too. Nappyzone sells GAD inserts I think. I also used prefolds for inserts and found them too bulky. Bamboo inserts are good too.
Good luck