@,
It's hard to find anything that sounds like Wintersun, so the closest you're going to get is probably Ensiferum. Of course I'm just saying that because Jari did the vocals on the early albums. I haven't heard anything that's even close to Wintersun.
Time got delayed so much, but I still wasn't disappointed with it. I just hope Time II doesn't take nearly as long as the first one took to make.