Cena's Little Helper
Mid-Card Championship Winner
His pro record has 6 draws on it. Two of them came during the streak and those two fights are not counted as wins on his official record.
Except, as I said before, Robinson's draws can also be considered as wins since he received the majority of points in both cases. Points in boxing are not proportional. If you have three judges and one of them scores a fight 100-0 in favor of one fighter while the others score the fight as a draw (i.e., 50-50), the fight would still be considered a draw even though the first fighter received 200 of the 300 available points.
None of Robinson's draws during his streak saw him evenly split or come out short on the available points. Technically then, his draws can be deemed as wins (and this why some people rightly regard his streak as one of the winning variety).
The Lakers streak easily matches the quality. They went out every night for two months and didn't lose, often going up against great teams and teams with future HOFers on the roster.
Even if they did play for 58-62 games straight through a similar amount of days, the physical and mental determination necessary to do so pales in comparison to that required by Robinson to get through 91 fights in a little over 8 years. The amount of cardiovascular endurance needed by an MMA fighter or boxer to get through a whole fight without gassing is unthinkable in comparison to that needed by an athlete involved in a non-contact professional sport.
As for the quality of the teams, besides the fact that the Lakers primarily faced losing teams, there was relatively little variety in the NBA during this time. NBA teams now have to potentially worry about facing off against 29 other teams. During their streak, the Lakers only had to worry about 15 teams (Cincinnati Royals not included). Besides being easier than what NBA teams have to prepare for nowadays, it doesn't hold a candle to the 72 different fighters Robinson and his camp had to train and prepare for during his winning-streak.
That's still two HOF boxers and a ton of former/current champions that he defeated in his streak. Looking at Robinson's 9 HOF opponent victories. 4 of them came against the same guy so it's obvious he had his number. Who knows where Chavez's HOF win total would be had there been more rematches with the top guys he faced
Camacho might get into the Boxing Hall of Fame. Besides Camacho, there are only two fighters from Chavez's streak who aren't yet eligible for induction: Silvio Walter Rojas and Juan Soberanes. These fighters respectively have records of 45-45-1 and 45-31-2 (that is to say, their chances of getting into the Hall of Fame when they're eligible are slim to none). So, as I said before, yes, I do think that this means two things:
1) In all probability, Camacho is the only other Chavez-streak-opponent that will be inducted into the IBHOF.
2) In terms of the quality of opponents, Chavez's streak is much, much less valuable than Robinson's.
As for LaMotta: 108 of Robinson's 173 wins were by knockout, but he never got more than a unanimous decision over LaMotta, a fighter notorious for his toughness and lack of a pain threshold (also, LaMotta did get one victory over Robinson). Robinson never had any problem acknowledging how tough LaMotta was, so, even if he did beat him almost every time they met, these victories shouldn't be discounted (this can't be stressed enough when you take into account LaMotta's own Hall of Fame status).
Finally, in regards to the hypothetical situation you presented, it's just that: a hypothetical situation. What-ifs add nothing of value to the world of sports, only results do.