I’m a big Sram fan. I changed to them yonks ago because the 1:1 actuation dealt with the muck better and I preferred the thumb only shifting. I also like the clunky, positive feel of the shift.
However, I understand that the newer Shimano stuff has the same benefits and has caught up again / overtaken Sram and is very popular again. It also seems better value than Sram, which these days seems very expensive for what it is. I still run it, but my mech and shifter were bought in the sales!
With regards to Shimano, I’d seriously look at the new Deore stuff. My brakes are incredible for the money, they genuinely are…if everything else works that well it’s got to be hard to justify the more expensive stuff.