Features-wise, possibly. If you like your software to be Free (as in "libre") it's probably not better than GIMP. For some people, like the ones who support the FSF, this matters.
Since FSF only has 4800 paying supporters worldwide, does it matter to that many people, globally, as a point of principle.
Um, yes it does? I'm not a paying supporter and I didn't mean it that way, but I can assure you there are more than 4800 people in the world that care about Free software. Even if there were only 4800, would it really change my point?