As per my MARE/ARMA side. . .
I must say that two handed weapons were by far the most prevalent medieval and renaissance weaponry, the longsword being foremost among them. Pikes, lances, poleaxes were all common in addition, and the way of the staff was integral for training for these weapon types, it would be nice if we got some rep who reflects all the systematic martial arts from that time period, I'm sure it would generate awesome gameplay stuff too.
As for axes, people actually used axes, maces, warhammer, what have you, and the like, but there are almost no manuals or works of them despite them appearing occasionally in accounts of battles (rarely, actually). The likely reason for this is because they required far less finesse to use 'properly', and a lot of things that would be learned with the ubiquitous sword would simply translate to them.
As for a sword and board, it was somewhat more common, but nobody used shields after the 14th century, bucklers and rondache replaced them.
Also, in armored combat, the primary method of fighting was grabbing your longsword by the ricasso and thrusting it into the weak points of the opponents armor. They actually grabbed the blade with their hands. Sword halving.
So, really, the knights in FE should have longswords, and lords shouldn't have those prissy inferior rapiers to deal with them (though they are thrusting, they were specifically designed to fight unarmored foes, and had trouble penetrating or wounding armored foes). Soldiers seriously need to be brought back with their polearms, and those should be the counters to mounted troops (the hooks on halberds were used in attempts to pluck the riders off from their soldiers, and pikes were super common around the 16th century).
Agh, what am I even talking about? This is FE, not real life.
Anyways, I was going to make some point about how a soldier lord would be super awesome in Smash, but I think everyone would agree with me that we need a polearm representative of some sort in Smash.
Edit: also.
I'm not really in the mood to argue over a trivial matter in regards to a series that I don't really give two ****s about.
Especially when said trivial matter is whether or not something is less irritating than the piss fights people get in over various blue-haired swordsman (with some red-haired thrown in).
Oh come on, you two, don't be pretentious jerks.