Magic-alls sold well-ish for us as they were a nice nappy, however we eventually dropped them due to high numbers being returned due to wicking at the legs and even leaking through the fabric. They're being re-designed and I'm hoping for better results from them. My own DS, your classic heavy wetter, couldn't use them at all, although interestingly now he's starting to use the toilet for about 1/2 his wees he is back in them for fast changes and fast drying over winter. Provided they're only catching an accident, they're great. I wouldn't recommend them as they are, though. It's the microterry inner - fast drying - and nice sizing that I liked.
I hate Kooshies, horrible outer fabric and slow drying. Most other all in ones come up like this IMO. Either too slow to dry, too bulky, not nice wrap, etc.
I've a few Mother-ease AIO which are ok. Nice outer but again slow drying (it's the cotton with only one side to dry from). These are the only ones I'd currently recommend.
Re pockets, I love Swaddlebees regular pockets for their shape but only recommend them to light or medium wetters, or as pull ups as they're not too absorbant. Fit is amazing of course. I dislike the Swaddlebees velour pockets because I see no point in a stuffie which needs a wrap. You can easily layer 2 parts - why take the time to stuff - then when you need to add the wrap as well it's pointless and you may as well have a proper 2 part.
I am not too keen on Fuzzis as, like, SB they're not great for heavy wetters and they're not such a nice fit as SB. I've heard of a lot of Fuzzi failures as well. I don't like the fact that you can't buy the boosters separately.
I like the Mommy's touch nappies, which are B2P. I've not used one but the design looks really good and it's clearly excellent quality - but again as a B2P it doesn't fit brilliantly at either end of the spectrum.
So, in all, I'm not so keen on either AIOs or pockets!!! We only stock Swaddlebees pocket nappies because they have some great advantages over others, but they're still not the right nappy for many (ie heavy wetters). The new design is dramatically superior to the old one, though, I have to say.
Sorry not to be more positive!!!
Emma