Not an Alaska guy, so neutral third party that has flown both.
Honestly a new 737 from a passenger perspective is a pretty good plane. However the A320 is wider, so no denying that.
From a pilot perspective, it’s just a step up from a POS.
737 Pros:
Nice MFDs and PFD- size and content.
Good navigation capabilities, with nice RNP values.
Pretty reliable. Far fewer return to gate mx issues. 1 in 2000 hours.
Cons:
Small cockpit
Loud. At 18k headsets come off on the Bus
Uncoupled go- around (yes the autopilot clicks off and most go arounds are hand flown).
Tempature control - only adjusted the cabin temp knobs on the A320 once in 700 hours.
The garbage recall system - absolute trash concept when the lights actually work. Boeing should be ashamed that they can’t digitize the interface, so it actually works the way it’s designed to. This wouldn’t invalidate the type rating , if our interaction with it was identical. Boeing just gave up.
From a pilots perspective, out of 10. 10 being best (sorry Boeing fan club)
A320 = 8
737 = 3