I mean, Ogma got an alternate in Fire Emblem Heroes before some other Archanea characters...although Navarre got one before Ogma.
Totally forgot about that. Though Ogma is still marketed way less than the likes of Marth, Caeda, Tiki, Minerva, the peg trio, etc.
That said, many of the Myrmidon characters are quite popular in general. It's not just the guys. Many of the female Myrmidons are also popular as well. It's not too surprising since Myrmidons/Swordmasters practically are the "fast high critical rate anime swordsman" deal in Fire Emblem, although most of them tend to have pretty favourable personalities and characters.
Didn't mean to imply it was just the boys. I listed Guy, Joshua, etc. because they had stickers in Brawl. Characters like Mia and Marisa are popular, too.
Thankfully characters of just about any class have shown potential to become popular in FE, though there is naturally a little skew towards certain ones.
I use units strictly based on how much I like them as characters, whether that’s their design or personality. Their stats don’t really factor into it much. I’ll try to make weaker units work wherever I can if I like them enough as characters and I won’t use strong units much if I didn’t really care much about them as characters. I never play on harder difficulties so can typically get away with just using characters I like the most.
Nothing wrong with using "bad" characters ("bad" in terms of, like, the performance and/or tier lists) in FE, or in Smash for that matter. FE games in particular, unlike Smash games, are purposefully designed so that some characters are better in combat than others, but also so that the game is beatable with almost anyone. It's part of the point: FE wants you to care about everyone, nobles and commoners, good combatants and bad combatants, etc.; in large-scale conflicts/wars, everyone has a unique story to tell and a role to play whether or not they are a good fighter, and conveying that idea has always been a part of the series.
I am open to playing all of the difficulty levels; how many I end up actually playing just depends on how replayable that particular installment is for me. For ex., I beat H5 on Shadow Dragon but some of the other games I only played through once, and a first playthrough is usually more casual for me. But "bad" characters can still be used even on harder difficulties in a lot of the games; you can beat basically everything with suboptimal teams (and doing so might even make a good challenge).
I’m not sure I ever put much thought into what class my favorites fall into.
The only real bias I think I have is towards a lot of the early-game axe fighters like Barst, Boyd, etc. Other than that, no, I don't really put much thought into the classes of my faves.
i am wondering if we are forever stuck with new gen pokemon and new fire emblem characters as being the only option for newcomers in their series during future smash games
"Anything can change!" - according to Chrom, no.
More seriously, though, it might take some effort from the fans and/or some certain circumstances to break the right way, but none of the "legacy" FE/PKMN characters are ineligible or anything, so maybe someday they could happen, especially if people keep supporting them.
Personally, I don't want to bank on hypothetical remakes when (1) they aren't guaranteed to happen and (2) remakes have a bad track record of helping characters become playable, but they could help, yeah, and definitely not hurt. I'd just advocate for focusing more on building support for the character themselves, and supporting them for their already established legacy.