I have used BG's for much longer than Grovia's so I may be a bit biased...but the Grovia's seem to be made for thinner babies. I don't think my son could've worn them when he was smaller and much more of a chunkster. I do like their slim fit though, now that he's lost a good bit of baby fat. I am also a fan of the organic cotton, which most of my BG's are not...but they do take a longer time to dry, so be aware of that. I really like both for different reasons, and put them on at different times. I would say get a few of each, and try them out--that's the best way you'll know!