Nice.
I personally find Dreamland as an extremely comfortable stage that Ness can survive and recover well on.
Skyworld because of the platform layour aids recovery and chaingrab potential on the bottom floor.
FD is an all around excellent stage for Ness but expect this to be banned against you A LOT.
Smashville is good because it's like FD.
If these are banned/illegal you can never go wrong with PS2, PS1, BF or Skyloft.
Ban Fountain of Dreams, Yoshi's Story and Yoshi's Island Brawl but FoD can be subbed with Warioware as it can be a problem stage for several MUs imo.
Although this might not apply to various MUs it's a solid set of bans for Ness.
Hope this helps. Any other questions?