I really like Big Macintosh and Shining Armor for being good brothers to their sisters. They're both good in their own ways, but I'm stuck between two really cool stallions in the show. But, I'm not sure which one is the better BBBFF.
Big Mac's shown up since the first episode in some episodes, and is shown to be a physically strong guy, and isn't one to fool around with if you mess with his family.
Shining Armor's only appeared in Season 2's Season Finale, but he's very close with Twilight, in fact being her only friend before going to Ponyville, and is Captain of the Canterlot Royal Guard.
Who's the better Big Brother Best Friend Forever: Big Macintosh or Shining Armor?