When it comes to drivers, I think Oscar is highly overrated by people and I am fairly confident we will see the third season in a row where he will lose to Lando on every possible metric and I don't actually expect it to be close again either. Lewis and Charles will be interesting. If Lewis is hungry and comfortable with the car, it won't be an easy battle for Charles. I do expect them to be the closest pair of teammates. Max will continue to do Max things in the RedBull but I do see Liami being somewhat closer. Would be a disaster if he is no improvement over Sergio. And at Mercedes, I predict an easy win for George. Kimi hasn't shown groundbreaking pace in F2 whereas George probably just had the best season of his career in 2024. He is coming in with very high confidence.
As for the teams and pecking order, I feel like that's a bit harder to predict. Ferrari had really promising in-season development (in particular towards the end) last year. In combination with a bunch of "low-hanging fruit" kind of ideas for potential improvements going into 2025, that makes them the easiest team to hype over. Ferrari seems like a safe bet at the moment, so I wouldn't be surprised if they finally manage to win again.
I would however be surprised if Mercedes was in the contention for wdc/wcc this year simply because Kimi was brought in too soon (imo) and they didn't show any signs of understanding what's wrong with their car last year. Could be a situation where they play catch up for most of the season again.
RedBull is probably the hardest team to gauge. Remains to be seen how much losing Newey and the whole Horner saga have hurt them. They improved things somewhat towards the end of 2024, but still, overall development last season was quite poor. If RedBull maintains the standards they have had these last couple of years then obviously you can't really exclude them from the battle, especially with Max driving. With how things have transpired lately though, that remains a big if.
And finally McLaren is also hard to evaluate in my opinion. People are jumping the gun when they consider them favorites for the WCC again. I am personally not convinced they can find enough laptime on their 2025 car to maintain leader pace. Development last year, with the exception of the Miami package, was uninspired and it seemed like they hit a wall with the MCL38 concept. The team seems confident though and they talked about taking risks for 2025. Also worth noting that McLaren's original expectation was for them to join the title fight in 2025. They just stumbled into a title fight in 2024 a year early when the investments hadn't set in 100%.
Even if the car is good enough, based on how last year went, McLaren is arguably the weakest team operationally at the top. If they don't show improvements in that aspect as well, it won't be easy for them to win either of the titles.