And today's Chrom's birthday!
He got a Finn's Lance in one file, and a Titania's Axe in the other.
He got a Miniature Lance and an Alm's Blade for me.
Anyways, at first and on paper Chrom seems like a cross between Hector and Ike. In practice though he's more like an Ephraim since he has a decent start, quickly becomes your top shitwrecker (barring stat screwage) from midgame all the way through the endgame but he will eventually get outclassed by the children characters due to middling stat caps and some of the better gen 1ers like anybody with Dark Mage or Pegasus Knight.
To prove a point my Lunatic DLC file has him, Est, Florina, Leonardo, Marth, and Nyna being my primary fighting force but Florina and Nyna crumple up in one or two hits tops, Leonardo and Marth can last longer but I still wouldn't put them anywhere near the front lines, Est can take a lot of punishment and dole it out and is hella survivable, but Chrom is miles ahead of her though mostly due to all the stat boosters I've been feeding him since he has priority. At this point despite all the favoritism I've been giving Chrom he's only a little bit better than Est due to being sturdier than her but even he can get overwhelmed and killed like in Chapter 16 when you have dozens of promoted and prepromoted Snipers, Warriors, Fighters, Bow Knights, Heroes, and Myrmidons rushing up the middle of the map while Falcon and Pegasus Knights bumrush the team from the sides. Granted it might have helped if he had something better than a Concoction to chug in case of emergencies, or if Nyna had the Physic staff or the Magic to use it from far enough to heal him without drawing arggo from him or putting herself in the line of fire of the fliers, or if Chrom had a partner instead of being the odd man out (or if he had some kind of non DLC character to support with and thus have semi reliable support attacks and defends).
That said, he has the most availability, Falchion sets him up nicely early game (especially in chapter 5 when there's Wyvern Riders in the air) and Exalted Falchion is a very solid weapon for the endgame and beyond, his reclasses basically give him near maximum horse (no Dark Knight) but causes him to waste his time as an Archer/Sniper where he can't use (Exalted) Falchion, he's guaranteed to be wed and have a child (although he's not guaranteed to S-rank a support in the process), he's Male Morgan's best father if you're looking for something other than reaching the highest stat cap possible or taking up Conquest, Aptitude, or a Beast Mode, and he makes for a decent alternative to Cynthia if she can't get Henry as a dad. And his best skills are Aether, Rightful King, Luna, Aegis, Dual Attack+, Dual Guard+, Defender, and maybe Prescience later on as his caps hold him back and you're just looking to snipe someone who's being naughty in your sight.