I think it's very hard to get 3 stars at Magic City/Jungle maps without AW'ed units.

Some videos other than atarimesan's are available below:
http://nicoviewer.net/sm27284064
http://nicoviewer.net/sm27176261
It seems Angel is better than Bandit for tanking first Wood Golem.

And maybe Archer is better than Witch, because Flying Crystal has high MR.
Flying Crystal DEF:250 MR:50