Quick rundown of some teams:
Argentina returns pretty much everyone to a man (save a banged up Enzo) from the WC winning squad. They should be heavy favorites to defend their title. Probably the biggest intrigue surrounding this team for me are 1) whether Lisandro will supplant or merely support Otamendi next to Romero, 2) who the best 3 strikers are (Spoiler: It's still Messi, Alvarez, ADM), but really how capable the backups like Lautaro and Garnacho are, and 3) what does this team look like if and when they play without Messi. The hope is we see continued performance from the likes of Mac Allister, De Paul, and GLC, and we see some new starters begin to emerge from Palacios, Balerdi, Carboni, etc.
Brazil is obviously a talented squad like always, but I'm baffled by their lack of quality in the backline and the omission of some players. Gabriel and Marquinhos are solid starters, but I've never trusted Militao and I suspect most Brazil fans are still traumatized by ADM racing by him for Argentina's goal in the last final. There's no real elite talent at either FB spot, and I'm surprised a player like Emerson Royal hasn't been given more run. The MF will be good at a minimum with Guimaraes and Paqueta, but they need a shuttler to emerge from the talented group of Douglas Luiz, Ederson, Gomes, etc. Up front should be fierce, with Vini, Rodrygo, Richarlison (is he getting called?), Martinelli, Raphinha, Endrick, etc. That front line alone should get them to the QF without breaking a sweat. But when you go up against an Uruguay or Argentina, the backline takes on more importance.
Uruguay are probably the third most talented squad at the Copa and they have Bielsa at the helm, so it'll be fun if nothing else. They have some elite starters in Araujo, Darwin, Valverde, Ugarte, and aren't bad thru the best XI, but there's little depth. However, Bielsa's system allows for weaker players to benefit from a cohesive collective, so I'd be surprised if they don't make it to the QF (barring an earlier matchup with Argentina or Brazil).
I'm not terribly impressed with Colombia's squad, which makes their trouncing of the USMNT all the more alarming.
Ecuador continues to punch above their weight, as they showed against Argentina the other night. This team is cohesive and a tough out. Super young team too and they will continue to grow together. Has to be exciting for fans of La Tri!
Mexico has some decent talent and it's all young, but they don't inspire confidence. Perhaps they're more cohesive than I give them credit for (TBF many more of them are playing in Liga MX than in recent memory) but I don't think they're challenging for honors.
Canada is my dark horse to make some noise. They have a good young squad with a couple of headliners--not a bad recipe for international cup football. They have a real chance to make it out of the group.