What is the best, strongest 8 3/4 housing?

In order, what is the best 8 3/4 housing

742
741
489

?
I have a 742 with 4.30's and a 741 with 3.91's

Hmm...those are all CENTER SECTIONS,the housing is what the carrier goes into of those the 742 and 489 are the strongest:iconbigg::iconbigg: