Let me see if I understand. Florida with a good quarterback, no established running backs or receivers, and the loss of six starters on their defense, is going to win the SEC? Those assertions are those of the OP. Florida will imo have a good team though not as good as last year. They have a decent chance at second in the East although Tennessee is coming in a hurry and with little chance against Georgia with all that talent Kirby Smart is amassing.
Alabama, on the other hand, is loaded. Jones, whom you dismissed, has superior numbers to Trask in every category. His only problem was he didn't play enough to be considered. He was 97 for 141 for 10.7 yds per completion. His qb rating was 186.9. Trask was 237 for 354 for 8.3 yards per completion with a qb rating of 146.5. Even if Jones is ineffective Bama has the Bryce Young, the number 1 rated prep qb in the country to replace him. I know the OP said he was too small. One would think that after Kyler Murray, Johnny Manziel, Tua, Baker Mayfield and Russell Wilson that it should be apparent that a qb doesn't have to be a giant.
Alabama, unlike Florida has both RBs including Najee Harris returning plus Trey Sanders the number 1 prep rb from 2018 who suffered an injury in preseason last year. The offensive line lost one player to the NFL and should be one of the nation's best. I doubt Florida's O-line matches up. For wrs Alabama has two returning who are considered top draft choices next winter, Davonte Smith and Jaylen Waddle, who the OP didn't mention in his write up.
Alabama did have problems on defense last year primarily because injuries decimated the lb and dl. Those freshman lbs are not freshmen any more plus All American Dylan Moses as well as Josh McMillan back at LB. The D-line was a weakness last year especially after Labryan Ray and DJ Dale were lost to injuries. They are both back along with the Number 2 rated recruiting class.
It is possible that Alabama could again be wracked with injuries which cost Alabama the playoffs last year, but at this point it is illogical to consider Florida better than Alabama and have them ranked 16