I will try to be as neutral here as possible
Focusing on the pros for each airline [areas where one is better than the other]
Alaska
- 3 course meal on Hawaii flights with a snack before the meal and warm nuts after.
- Boardroom access
- Better legroom [seat in front of you does not recline in your space]
- Smaller F cabin compared to DL's 757s which means more personal attention
- Better tray table [no need for the "sticky" paper]... My drink does not slide down towards me

- More underseat storage space than DL birds with AVOD due to equipment box
- Tablecloth napkin
- Winged Headrests
- Better all-around customer service [none of that "Thank you for calling Delta, we are busy, so please call again later" baloney]
Delta
- Full PDB!!!!
- Seats padding is better [specifically the lower back area]
- More recline
- Might have AVOD [AS has DigEplayers]
- Hot Towels after meal service
- In-seat Power
AS is better on transcons and Hawaii flights than Delta IMO.