Hong, Inigo x Gerome is really cute. It was kind of blah up until the A-rank, but I thought it was adorable. Mentioning it since you posted the comic.
On Eliwood-related matters, although Eliwood uses a Rapier, he could still fight entirely different from Marth. The only move that strikes me as Rapier-like is his neutral B, the rest are pretty much broad slashes (I could be forgetting some). If it was Eliwood with Durandal I could see that being a concern (though then I could see it being Ike being the potential clone worry), but if it's an unmounted and Rapier-wielding Eliwood, he could stand out. No chance of him getting into Smash, since I imagine if they were to pick someone from Elibe they'd bring back Roy, but still could be fun if he was in. Mounted just seems odd.
On Eliwood-related matters, although Eliwood uses a Rapier, he could still fight entirely different from Marth. The only move that strikes me as Rapier-like is his neutral B, the rest are pretty much broad slashes (I could be forgetting some). If it was Eliwood with Durandal I could see that being a concern (though then I could see it being Ike being the potential clone worry), but if it's an unmounted and Rapier-wielding Eliwood, he could stand out. No chance of him getting into Smash, since I imagine if they were to pick someone from Elibe they'd bring back Roy, but still could be fun if he was in. Mounted just seems odd.