Triple the fun eh!

All are great and I do find inverse battles to be quite interesting but when it comes to my favorite it's really close between Single Battle and Double Battle but since I'm picking one my choice is Double Battle.

I like Double Battles the best, mostly because if the Exp. Share is turned on, and one of my Pokémon has the Lucky Egg and the move Protect, and the other a Luck Incense (or Amulet Coin) and the move Earthquake, I can use what Pokémon fans call the “Earthquake/Protect Combo.”

And that is a really big help — especially since the Lucky Egg is a good tool for helping me train my Pokémon well and earn lots of experience points. :)

^My recent strategey is kinda like that. Except instead of protect, I have a Pokemon that is immune to earthquake.

Really good for experience

I liked watching the tag battles in Sinnoh!