FE 6 Binding blade, GBA needs also a translation, it shows a lot of the promise of the series on the GBA but it's balance is a bit wonky.
I'm playing this right now, and the big FE6 flaw few people mention is how
horrible the map design is. A good chunk of the maps are meh to acceptable, but several maps are just horrible garbage. Not even FE2's and FE4's style of garbage map where they can all be described with the same flaws as the rest of the maps in their game, but rather a situation where each manages to be horrible in its own, unique, way.
How about a level where you're attacked from every direction at once and have to race forward to save some NPCs determined to get themselves killed?
How about a level where you're in a long linear corridor racing against a semi-random time limit? (The patch I'm playing actually fixes this with a simple, but elegant, way: Add a breakable wall near the start with powerful enemies who won't bother you if you go the other way on the other side)
How about a fog of war level where most units can barely move, and you're on a time limit,
and you're saddled with two escortees,
and you have luck based objectives that game only poorly hints at the existence of? (Patch I'm using swaps one escortee with a unit that's actually good in this level, but the level is still bad)
How about a level where the floor randomly shifts under you, often leaving units immobile, but you can basically skip the entire level with some basic use of fliers and powerful units?
How about a level that funnels you through corridors while you're being bombarded by inaccurate enemies who will kill one of your units in the rare chance they hit but are positioned in a way you can't kill them and have to wait for them to run out of ammo
and you have to ensure an aggressive enemy survives?
How about a level where you run around a linear corridor while the enemy inflict horrible stats effects on you every turn, often disabling the only unit who can heal these conditions, which last way too long?
How about a series of levels filled with enemies that only attack at range so you can't counterattack them and have to slowly kill them all on player phase (thankfully this one is avoidable by ensuring your pegasus knights get more XP than your nomads)
How about a level where enemies constantly spawn out of nowhere and can attack before you can even see they're there? (By the way, this level also has a time limit! The patch I'm using makes it so you always get a turn after enemies spawn before they act, but it's still hell.)
How about a level where your bombarded with ballista that can hit you almost anywhere, and the only way to attack the balista is to put yourself in range of stats effects you have no ability to cure because your healers can't reach the area?
How about a final level that's laughably easy because none of the enemies can attack from range?
I appreciate them
trying to make sure the maps have variety (there's a lot of gimmick levels I didn't mention because they're quick and forgettable instead of horrible like the above), but that's impossible to do well in a game with a grand total of two level objectives, one of which (kill boss) is only used in the final boss fight. I can't really think of any levels I'd call
good or especially fun.