I just joined Instagram and Vine after long persuasion from friends and I can honestly say I prefer neither! They are both similar anyway, I just get bored.
Instagram is obviously more popular so people are bound to like it more, vine's layout is similar to twitter though but I don't know. I'll have to use them both a bit more and then report back! I think however that Instagram has more features, and their video is easier to share around.
It's really a matter a taste. I like Instagram simply because I can use third-party apps like Lomotif to easily create awesome videos from random clips on my Camera Roll. With Vine, there's so much planning involved to make a good one. Just my 2 cents so don't flame me!
Try this video downloader for Instagram through which you can easily save instagram videos, picture to your phone gallery.Didn't find the answer you were looking for?