This comparison is important to me because these three cars are on my short list. This comparison was done in New Zealand so the prices are not likely to be meaningful in your area but if these are cars on your short list this is still a really good review. You can see that the Dolphin “won” based on points but the other two were not far behind. It is also likely that what is important to you may not be what was the most important to the reviewer. As I watched the review my “first choice” moved around a bit. That said, if all three were available here right now, I would buy the MG4.
Anyway, check out the comparison.