Adobe is definitely the ubiquitous choice - they mostly write decent software. Their RAW tools are definitely good and people are used to it. Like others here have also noted, it's a personal choice. There are a quite a number of great RAW tools out there though - and to circle back to your original post, don't discount Affinity. They're hungry and they see an opening and they are pushing really, really hard right now to be a competitor to Adobe. And for a 1.X release, it's absolutely fantastic. Their support is fantastic, they listen to feedback, they push those changes out very quickly and have a great beta program.
For other RAW converters, Capture One and DXO are excellent. AfterShot Pro is an alternative too - I'm a little leery of Corel. Iridient Developer is a quality tool too. All have their strengths and weaknesses. You can get zillions of opinions of them all over the interwebs but the best is to just try them. I have them all. 🙂
All except for Adobe. This is my first Adobe-free year, we'll see how it goes. I should note that I'm not trying to be hip (or at least too hip) in chucking Adobe, I was simply not using their tools for much and in particular, for me, Affinity completely replaces anything I ever did in Photoshop. There's a lot of great stuff out there.