To be honest I prefer the MoYu WeiLong v1. In reality it isn't that different from the V2 except that it has a two piece corner design instead of three. But I'll stick to the two you've selected. The WeiLong V2 is a pretty good cube. It's fast, smooth, and it will never pop. Mine locks-up a little because the corners catch on the other pieces but that can fixed with either some sanding or just breaking it in. The AoLong is also a pretty good cube but it feels very different than the WeiLong. I have three AoLongs and I can tell you they all feel different. The one I got from the cubicle was very bubbly and fast. It felt a bit oily with a slight scratchy feeling similar to that of the FangShi ShuangRen. The one I got from HKNowStore felt different. I think this is because it came as a DIY kit instead of being assembled like the one I got from the Cubicle. The HKNowStore AoLong felt very, very dry and scratchy. It's also very fast and not as smooth as the WeiLong. So it really depends on your preference. They are both very fast cubes, in fact a lot of people say they are uncontrollable for people who average above 15 seconds. If you like really smooth, fast cubes with no clicky or crunchy feeling, get the WeiLong. If you prefer a slightly scratchy or matted yet still smooth feeling, then get the AoLong.