ok, smb2 was a good game. It was fun, unique and had a decent challenge. It also had a interesting level platform. I liked it and that is why it is on my VC now.
Granted, had that game been released in its original form, i.e. not mario based, it would not have sold anywhere near the same. But, that doesn't mean it isn't a good game.
Sunshine just didn't keep me entertained. I was ok, but just not much of a mario platform game to me. I didn't even finish it, not because I couldn't, but because I got bored of it.
Also, NSMB on DS was fantastic. Your an idiot if you didn't like it. It was the sole reason I owned a DSLite for a month.