At this age I would say your velcro is possibly going to give you a nicer fit. But I haven't done a wee on in cloth yet. BUT Snaps are better because they are hard to undo when they start playing withthe tabs of the nappy.

I personally wouldn't use a AIO or AI2 for a night nappy. I think you would be much safer with a fitted & cover.
Im not a fan of BBH's but they seem to work for a lot of people.

I have Wildchilds as my night nappys & some fitteds that I make myself for when bubby is very small.