I don't see a general Smash 3DS thread so I'll post here.
I guess I always used L for blocking with the Gamecube controller...
Same. Immediately after I downloaded the full game, I switched the guard and grab buttons. It's so much easier, in my opinion, to have your shield on L in case you want to do a side dodge. It's just one quick muscle movement instead of having to use both hands.
My favorite characters right now are Greninja and Duck Hunt. Greninja is just everything I want in a Smash character: A fast, hard-to-predict, powerful fighter who is also a Pokémon
. Duck Hunt is such a unique concept and is so fun to use. The Mii Fighters are surprisingly amazing too. Mii Brawler and Little Mac are just different enough for me, and Mii Swordfighter is just a composite of all of the best parts of the other swordfighting characters. Not a fan of Mii Gunner so much.
Also, just a personal grievance here: I really don't like how much Kid Icarus is being represented in this game. I get that it's Sakurai's less notable series and whatever, but using Smash as a vessel to show it off wasn't the right choice. Dark Pit was probably one of the most undeserving clones and could have easily been an alternate costume like the Koopalings and Alph. Dr. Mario at least has quite a few different custom moves, so I'll give him that in defense of his own character slot.