We did this last time with my 2 girls who were 2&10 at the time and they loved it, yes DD2 could not do it properly but she had so much fun trying, we had a lovely sunny day and took our time. DD10 found it fine, compares to most mini golf. I came last!! Think DD2 was cheating a bit!!
We've not done winter summerland so I can't compare but we will definitely do Fantasia again, we stayed at BC and just walked through swan/dolphin.