Hey Engarde, I need someone to clone my flawless Articuno and would rather have someone I know do it. I'll let you keep a copy! iirc you're EST, would you be available around 5:30-6:00pm? (9:30-10:00am for me, I have to go to work after then) Unless you're available in the morning (anytime from now + 2.5 hours). Let me know either way :)
Moreover, every time you hit someone on shield, there is a little bit of stun - your opponent can't drop their shield and attack immediately after being hit. Marth, with good spacing, gets more shield stun, and so is safer to use (less likely to get hit in retaliation) than Lucina.
On the other hand, with the 3DS controls, it's hard to get the precision necessary to play Marth well, so many are using Lucina because she's a more forgiving char. Once the Wii U version comes out, I bet a lot of people will switch back to using Marth.