Farah can't be put at the same level as Jakob since Jakob is better on both side.
We have never seen Jakob race againt the greatest 5k/10k runner of all time either
Farah 2:19 is overrated, not underrated, by people not taking into account that it was the slowest championship race ever (14.25 pace for 4km). Bekele had an at least as good as a kick as Farah's. Look at what prime El Gerrouj had to do to beat him by 0,2 sec in a quite SLOW race. That was a 52.9 last lap ( from Kipchoge to Hicham so 52.5 for hicham 52.9 for Bekele) while kicking at 200-250m to go only. Look also how close Kipchoge is despite the fact he has a 3:33PB (and he beat them both in 2003, 53 last lap in 12:52 race). Not only 1500speed matters. Kipchoge wasn't running the 1500 or 10 000 before the 5k though.
And that was a 22yo Bekele, who was already at his prime physical abilities but not tacticalIy. In a 12:50 race or faster, Bekele could OUTKICKED EL GERROUJ (who is a better version of Farah, and I know El Gerrouj outckicked Bekele in a 12:52 race in 2003 but Bekele was'nt in his prime yet back then) because even if El Gerrouj can follow, it's an all out pace or 95% for him and that's hurt his kick a lot while Bekele has some margin and almost as good natural speed. And Bekele could solo run 12:40-45 with old spikes.
Farah "optimized" strategy was to outkick 3:32/26:50-27:00 guys being a 3:28/26:40guy (granted we worked hard for being a 3:28 guy). Nothing genius there. According to Canova, Bekele was a 3:28/sub 26:00 guy potential IN OLD SPIKES that never trained for the 10K specifically nor tried hard because he didn't need to to win everything and break the WR. Even though i'm not as optimistic as Canova, Bekele had a huge strengh margin on anybody, even Jakob.
If you factor everything in an hypotetical scenario where they are all at their prime nowadays and race perfect time trials with all the tech : (I give 0,5sec improvment for 1500, 5sec for 5k, 10s for 10k for the shoes. They all get an extra bonus for distances where they never try an all out effort or were poorly paced, accordingly to what they've shown overall.
Bekele : 3:28?/12:30/26:00
Jakob : 3:27/12:35/26:20?
El Gerrouj : 3.25/12:35-40/26:40?
Farah : 3:28/12:40/26:30
You can argue the numbers but I think it's realistic.
Even in a slow race, nobody is guaranteed to outkick Bekele. Jakob and El Gerrouj are favorite but not like 90/10, more like 70/30. They could sit, kick and loose sometimes.
Now in a fast race, which Bekele would have set everytime after 2004 :
If Aregawi can run a progressive 12:40 leading a lot, Bekele could run a 7:25 last 3k. That would drop Farah and maybe El Gerrouj (or at least kill his kick). Jakob would follow but he would still be like 60/40 vs Jakob because he is the best overall athlete for the 5k (and even more so for the 10k).